The Learning Point‎ > ‎Mathematics‎ > ‎

### Set Theory 1: Examples of Cardinal Number, Union and Intersection of Sets

The Cardinal Number of a set is the number of elements in a set. So a set {1, 2, 4} has a cardinal number 3.
The Union of two sets A and B is a set which contains each element of A and B.
The Intersection of two sets A and B is a set containing each element which is common to both A and B.

Example 1

### Find the Union and Intersection of two sets A and B where Set A = {-39,-46,-11,-40,-4,-36,-23} and Set B = {-48,-22,-9}. What is the cardinal number of A, B, their union and intersection?

Union = {-39,-46,-11,-40,-4,-36,-23,-48,-22,-9}
Intersection = {}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 2

### Find the Union and Intersection of two sets A and B where Set A = {-24,-22,-21,-37} and Set B = {-30,-39,-10,-13,-35,-26,-44,-28,-22}. What is the cardinal number of A, B, their union and intersection?

Union = {-24,-22,-21,-37,-30,-39,-10,-13,-35,-26,-44,-28}
Intersection = {-22}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 1

Example 3

### Find the Union and Intersection of two sets A and B where Set A = {-43,-48,-44} and Set B = {-1,-22,-6,-27,-39,-50,-40,-4,-5,-12}. What is the cardinal number of A, B, their union and intersection?

Union = {-43,-48,-44,-1,-22,-6,-27,-39,-50,-40,-4,-5,-12}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 4

### Find the Union and Intersection of two sets A and B where Set A = {-32,-15,-22,-50,-49,-16,-47,-3} and Set B = {-1,-44,-31,-6,-21,-19,-4}. What is the cardinal number of A, B, their union and intersection?

Union = {-32,-15,-22,-50,-49,-16,-47,-3,-1,-44,-31,-6,-21,-19,-4}
Intersection = {}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 15
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 5

### Find the Union and Intersection of two sets A and B where Set A = {-5,-32,-34,-48,-19} and Set B = {-27,-46,-15,-12,-5,-35,-18,-23,-36,-49}. What is the cardinal number of A, B, their union and intersection?

Union = {-5,-32,-34,-48,-19,-27,-46,-15,-12,-35,-18,-23,-36,-49}
Intersection = {-5}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 1

Example 6

### Find the Union and Intersection of two sets A and B where Set A = {-44,-16,-30,-6,-29,-24,-48,-26,-40} and Set B = {-24,-48,-3,-20}. What is the cardinal number of A, B, their union and intersection?

Union = {-44,-16,-30,-6,-29,-24,-48,-26,-40,-3,-20}
Intersection = {-24,-48}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 2

Example 7

### Find the Union and Intersection of two sets A and B where Set A = {-44,-27,-13} and Set B = {-11,-37,-13,-15,-30,-26,-42,-28}. What is the cardinal number of A, B, their union and intersection?

Union = {-44,-27,-13,-11,-37,-15,-30,-26,-42,-28}
Intersection = {-13}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 8

### Find the Union and Intersection of two sets A and B where Set A = {-31,-28,-39,-1,-36,-15,-18,-23} and Set B = {-30,-36,-8,-47,-10,-16,-38,-46,-44}. What is the cardinal number of A, B, their union and intersection?

Union = {-31,-28,-39,-1,-36,-15,-18,-23,-30,-8,-47,-10,-16,-38,-46,-44}
Intersection = {-36}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 16
Cardinal number of their intersection = number of elements in their intersection = 1

Example 9

### Find the Union and Intersection of two sets A and B where Set A = {-13,-18,-7,-50,-41,-16} and Set B = {-27,-16,-29,-38,-19,-5,-34,-31}. What is the cardinal number of A, B, their union and intersection?

Union = {-13,-18,-7,-50,-41,-16,-27,-29,-38,-19,-5,-34,-31}
Intersection = {-16}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 1

Example 10

### Find the Union and Intersection of two sets A and B where Set A = {-6,-25} and Set B = {-33,-12,-11,-18,-30,-16,-49,-26,-10}. What is the cardinal number of A, B, their union and intersection?

Union = {-6,-25,-33,-12,-11,-18,-30,-16,-49,-26,-10}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 11

### Find the Union and Intersection of two sets A and B where Set A = {-22,-5,-50,-12,-11} and Set B = {-44,-49,-28,-38,-27}. What is the cardinal number of A, B, their union and intersection?

Union = {-22,-5,-50,-12,-11,-44,-49,-28,-38,-27}
Intersection = {}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 12

### Find the Union and Intersection of two sets A and B where Set A = {-49,-14,-21,-2,-27,-23,-41,-28} and Set B = {-1,-13,-5}. What is the cardinal number of A, B, their union and intersection?

Union = {-49,-14,-21,-2,-27,-23,-41,-28,-1,-13,-5}
Intersection = {}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 13

### Find the Union and Intersection of two sets A and B where Set A = {-8,-27,-44,-19,-26,-32,-29} and Set B = {-2,-38,-11,-8,-47,-27,-20,-21,-50,-29}. What is the cardinal number of A, B, their union and intersection?

Union = {-8,-27,-44,-19,-26,-32,-29,-2,-38,-11,-47,-20,-21,-50}
Intersection = {-8,-27,-29}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 3

Example 14

### Find the Union and Intersection of two sets A and B where Set A = {-15,-13,-18,-24,-28,-29,-35,-21} and Set B = {-2,-28,-41,-15,-39,-14,-30,-29,-33}. What is the cardinal number of A, B, their union and intersection?

Union = {-15,-13,-18,-24,-28,-29,-35,-21,-2,-41,-39,-14,-30,-33}
Intersection = {-15,-28,-29}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 3

Example 15

### Find the Union and Intersection of two sets A and B where Set A = {-5,-10,-28,-1,-49,-50,-38,-3,-21} and Set B = {-36,-15,-49,-34,-45,-14,-27,-6,-28,-11}. What is the cardinal number of A, B, their union and intersection?

Union = {-5,-10,-28,-1,-49,-50,-38,-3,-21,-36,-15,-34,-45,-14,-27,-6,-11}
Intersection = {-28,-49}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 17
Cardinal number of their intersection = number of elements in their intersection = 2

Example 16

### Find the Union and Intersection of two sets A and B where Set A = {-38,-35,-46,-37} and Set B = {-16,-32,-50,-3,-43,-13,-2}. What is the cardinal number of A, B, their union and intersection?

Union = {-38,-35,-46,-37,-16,-32,-50,-3,-43,-13,-2}
Intersection = {}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 17

### Find the Union and Intersection of two sets A and B where Set A = {-14,-44,-32,-10,-41,-29,-35,-6,-3,-36} and Set B = {-12,-13,-10,-50}. What is the cardinal number of A, B, their union and intersection?

Union = {-14,-44,-32,-10,-41,-29,-35,-6,-3,-36,-12,-13,-50}
Intersection = {-10}
Cardinal number of A = Number of elements in A = 10
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 1

Example 18

### Find the Union and Intersection of two sets A and B where Set A = {-40,-24,-14,-2,-27,-32} and Set B = {-13,-31,-27,-43,-26,-4,-40,-46}. What is the cardinal number of A, B, their union and intersection?

Union = {-40,-24,-14,-2,-27,-32,-13,-31,-43,-26,-4,-46}
Intersection = {-40,-27}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 2

Example 19

### Find the Union and Intersection of two sets A and B where Set A = {-49,-43,-44,-11,-18,-39,-42,-9} and Set B = {-27,-7}. What is the cardinal number of A, B, their union and intersection?

Union = {-49,-43,-44,-11,-18,-39,-42,-9,-27,-7}
Intersection = {}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 20

### Find the Union and Intersection of two sets A and B where Set A = {-22,-38,-12,-18,-46,-16,-29,-24} and Set B = {-23,-19,-11,-37,-13,-16,-3,-1,-7,-6,-46}. What is the cardinal number of A, B, their union and intersection?

Union = {-22,-38,-12,-18,-46,-16,-29,-24,-23,-19,-11,-37,-13,-3,-1,-7,-6}
Intersection = {-46,-16}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 11
Cardinal number of their union = number of elements in their union = 17
Cardinal number of their intersection = number of elements in their intersection = 2

Example 21

### Find the Union and Intersection of two sets A and B where Set A = {-9,-36,-38} and Set B = {-31,-7,-10,-13}. What is the cardinal number of A, B, their union and intersection?

Union = {-9,-36,-38,-31,-7,-10,-13}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 7
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 22

### Find the Union and Intersection of two sets A and B where Set A = {-27,-16,-39,-14} and Set B = {-38,-40,-1,-16}. What is the cardinal number of A, B, their union and intersection?

Union = {-27,-16,-39,-14,-38,-40,-1}
Intersection = {-16}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 7
Cardinal number of their intersection = number of elements in their intersection = 1

Example 23

### Find the Union and Intersection of two sets A and B where Set A = {-43,-26,-46} and Set B = {-5,-20,-19,-23,-37,-42,-12,-2,-14,-6}. What is the cardinal number of A, B, their union and intersection?

Union = {-43,-26,-46,-5,-20,-19,-23,-37,-42,-12,-2,-14,-6}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 24

### Find the Union and Intersection of two sets A and B where Set A = {-46,-8,-30,-6,-11,-44,-1,-22} and Set B = {-3,-10,-23,-6,-45,-7}. What is the cardinal number of A, B, their union and intersection?

Union = {-46,-8,-30,-6,-11,-44,-1,-22,-3,-10,-23,-45,-7}
Intersection = {-6}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 1

Example 25

### Find the Union and Intersection of two sets A and B where Set A = {-49,-18,-36,-1,-24,-3,-38,-11,-29} and Set B = {-8,-24}. What is the cardinal number of A, B, their union and intersection?

Union = {-49,-18,-36,-1,-24,-3,-38,-11,-29,-8}
Intersection = {-24}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 26

### Find the Union and Intersection of two sets A and B where Set A = {-22,-10,-5,-34,-50,-44} and Set B = {-39,-14,-15,-45,-27,-47,-22,-43}. What is the cardinal number of A, B, their union and intersection?

Union = {-22,-10,-5,-34,-50,-44,-39,-14,-15,-45,-27,-47,-43}
Intersection = {-22}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 1

Example 27

### Find the Union and Intersection of two sets A and B where Set A = {-49,-14,-16,-30,-43,-38,-32,-25,-41} and Set B = {-31,-19,-26}. What is the cardinal number of A, B, their union and intersection?

Union = {-49,-14,-16,-30,-43,-38,-32,-25,-41,-31,-19,-26}
Intersection = {}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 28

### Find the Union and Intersection of two sets A and B where Set A = {-19,-11,-26,-18} and Set B = {-47,-27,-43,-11,-31,-38,-4,-15,-18,-23}. What is the cardinal number of A, B, their union and intersection?

Union = {-19,-11,-26,-18,-47,-27,-43,-31,-38,-4,-15,-23}
Intersection = {-11,-18}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 2

Example 29

### Find the Union and Intersection of two sets A and B where Set A = {-23,-46,-28,-37,-7} and Set B = {-17,-30,-24,-13,-15}. What is the cardinal number of A, B, their union and intersection?

Union = {-23,-46,-28,-37,-7,-17,-30,-24,-13,-15}
Intersection = {}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 30

### Find the Union and Intersection of two sets A and B where Set A = {-16,-31,-12,-2} and Set B = {-22,-29}. What is the cardinal number of A, B, their union and intersection?

Union = {-16,-31,-12,-2,-22,-29}
Intersection = {}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 6
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 31

### Find the Union and Intersection of two sets A and B where Set A = {-7,-23,-31,-10,-43} and Set B = {-23,-15,-32,-9,-44,-10,-30}. What is the cardinal number of A, B, their union and intersection?

Union = {-7,-23,-31,-10,-43,-15,-32,-9,-44,-30}
Intersection = {-23,-10}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 2

Example 32

### Find the Union and Intersection of two sets A and B where Set A = {-26,-37,-10,-27,-45,-4,-12,-5} and Set B = {-12,-43,-22,-41,-34,-44,-33}. What is the cardinal number of A, B, their union and intersection?

Union = {-26,-37,-10,-27,-45,-4,-12,-5,-43,-22,-41,-34,-44,-33}
Intersection = {-12}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 1

Example 33

### Find the Union and Intersection of two sets A and B where Set A = {-25,-24,-42} and Set B = {-40,-41}. What is the cardinal number of A, B, their union and intersection?

Union = {-25,-24,-42,-40,-41}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 5
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 34

### Find the Union and Intersection of two sets A and B where Set A = {-36,-24,-35,-43,-16,-38} and Set B = {-24,-1,-40}. What is the cardinal number of A, B, their union and intersection?

Union = {-36,-24,-35,-43,-16,-38,-1,-40}
Intersection = {-24}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 8
Cardinal number of their intersection = number of elements in their intersection = 1

Example 35

### Find the Union and Intersection of two sets A and B where Set A = {-26,-42} and Set B = {-24,-23,-10,-38,-34,-44}. What is the cardinal number of A, B, their union and intersection?

Union = {-26,-42,-24,-23,-10,-38,-34,-44}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 8
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 36

### Find the Union and Intersection of two sets A and B where Set A = {-8,-9,-35,-41,-16,-38,-14,-6} and Set B = {-23,-3,-2,-43}. What is the cardinal number of A, B, their union and intersection?

Union = {-8,-9,-35,-41,-16,-38,-14,-6,-23,-3,-2,-43}
Intersection = {}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 37

### Find the Union and Intersection of two sets A and B where Set A = {-5,-46} and Set B = {-29,-14,-7,-26}. What is the cardinal number of A, B, their union and intersection?

Union = {-5,-46,-29,-14,-7,-26}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 6
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 38

### Find the Union and Intersection of two sets A and B where Set A = {-31,-14} and Set B = {-49,-33,-4,-30,-26}. What is the cardinal number of A, B, their union and intersection?

Union = {-31,-14,-49,-33,-4,-30,-26}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 7
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 39

### Find the Union and Intersection of two sets A and B where Set A = {-36,-47,-40} and Set B = {-8,-45,-29,-38}. What is the cardinal number of A, B, their union and intersection?

Union = {-36,-47,-40,-8,-45,-29,-38}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 7
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 40

### Find the Union and Intersection of two sets A and B where Set A = {-15,-31,-37,-14,-42,-24} and Set B = {-25,-20,-11,-26,-27,-15,-12,-17,-49}. What is the cardinal number of A, B, their union and intersection?

Union = {-15,-31,-37,-14,-42,-24,-25,-20,-11,-26,-27,-12,-17,-49}
Intersection = {-15}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 1

Example 41

### Find the Union and Intersection of two sets A and B where Set A = {-13,-5,-44,-6,-15,-20} and Set B = {-18,-9,-13,-15,-6}. What is the cardinal number of A, B, their union and intersection?

Union = {-13,-5,-44,-6,-15,-20,-18,-9}
Intersection = {-13,-6,-15}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 8
Cardinal number of their intersection = number of elements in their intersection = 3

Example 42

### Find the Union and Intersection of two sets A and B where Set A = {-2,-48,-10} and Set B = {-17,-12,-41,-36,-6,-25,-2}. What is the cardinal number of A, B, their union and intersection?

Union = {-2,-48,-10,-17,-12,-41,-36,-6,-25}
Intersection = {-2}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 9
Cardinal number of their intersection = number of elements in their intersection = 1

Example 43

### Find the Union and Intersection of two sets A and B where Set A = {-23,-6,-4,-40,-50,-15,-34,-43,-3} and Set B = {-42,-35,-10,-20,-49}. What is the cardinal number of A, B, their union and intersection?

Union = {-23,-6,-4,-40,-50,-15,-34,-43,-3,-42,-35,-10,-20,-49}
Intersection = {}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 44

### Find the Union and Intersection of two sets A and B where Set A = {-21,-14} and Set B = {-38,-21}. What is the cardinal number of A, B, their union and intersection?

Union = {-21,-14,-38}
Intersection = {-21}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 3
Cardinal number of their intersection = number of elements in their intersection = 1

Example 45

### Find the Union and Intersection of two sets A and B where Set A = {-4,-38,-30,-41,-40,-28,-33,-17} and Set B = {-9,-5,-14}. What is the cardinal number of A, B, their union and intersection?

Union = {-4,-38,-30,-41,-40,-28,-33,-17,-9,-5,-14}
Intersection = {}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 46

### Find the Union and Intersection of two sets A and B where Set A = {-1,-32,-14,-41,-33,-7} and Set B = {-9,-11,-7,-30,-21,-33,-4,-28,-22,-25}. What is the cardinal number of A, B, their union and intersection?

Union = {-1,-32,-14,-41,-33,-7,-9,-11,-30,-21,-4,-28,-22,-25}
Intersection = {-33,-7}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 2

Example 47

### Find the Union and Intersection of two sets A and B where Set A = {-40,-32} and Set B = {-15,-1,-26,-3,-47,-46}. What is the cardinal number of A, B, their union and intersection?

Union = {-40,-32,-15,-1,-26,-3,-47,-46}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 8
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 48

### Find the Union and Intersection of two sets A and B where Set A = {-34,-28,-2,-20,-37,-1,-17,-9,-32} and Set B = {-37,-10}. What is the cardinal number of A, B, their union and intersection?

Union = {-34,-28,-2,-20,-37,-1,-17,-9,-32,-10}
Intersection = {-37}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 49

### Find the Union and Intersection of two sets A and B where Set A = {-43,-32,-5,-13,-25,-50,-47} and Set B = {-9,-34,-48,-16,-39,-3,-4,-26}. What is the cardinal number of A, B, their union and intersection?

Union = {-43,-32,-5,-13,-25,-50,-47,-9,-34,-48,-16,-39,-3,-4,-26}
Intersection = {}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 15
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 50

### Find the Union and Intersection of two sets A and B where Set A = {-9,-46} and Set B = {-27,-33,-14,-42}. What is the cardinal number of A, B, their union and intersection?

Union = {-9,-46,-27,-33,-14,-42}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 6
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 51

### Find the Union and Intersection of two sets A and B where Set A = {-43,-15,-32,-9} and Set B = {-43,-15,-1,-10}. What is the cardinal number of A, B, their union and intersection?

Union = {-43,-15,-32,-9,-1,-10}
Intersection = {-43,-15}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 6
Cardinal number of their intersection = number of elements in their intersection = 2

Example 52

### Find the Union and Intersection of two sets A and B where Set A = {-1,-26,-7,-34,-2} and Set B = {-17,-19,-38,-21,-26,-11}. What is the cardinal number of A, B, their union and intersection?

Union = {-1,-26,-7,-34,-2,-17,-19,-38,-21,-11}
Intersection = {-26}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 53

### Find the Union and Intersection of two sets A and B where Set A = {-44,-26,-29,-28,-2} and Set B = {-17,-5,-22,-33,-27,-49,-44,-34,-14}. What is the cardinal number of A, B, their union and intersection?

Union = {-44,-26,-29,-28,-2,-17,-5,-22,-33,-27,-49,-34,-14}
Intersection = {-44}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 1

Example 54

### Find the Union and Intersection of two sets A and B where Set A = {-6,-40,-2,-48,-7,-4,-41,-9,-1} and Set B = {-24,-23,-11,-13,-46,-43,-29,-50}. What is the cardinal number of A, B, their union and intersection?

Union = {-6,-40,-2,-48,-7,-4,-41,-9,-1,-24,-23,-11,-13,-46,-43,-29,-50}
Intersection = {}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 17
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 55

### Find the Union and Intersection of two sets A and B where Set A = {-38,-1,-43,-15,-42} and Set B = {-5,-50,-30,-20,-8}. What is the cardinal number of A, B, their union and intersection?

Union = {-38,-1,-43,-15,-42,-5,-50,-30,-20,-8}
Intersection = {}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 56

### Find the Union and Intersection of two sets A and B where Set A = {-47,-36,-41,-28,-11,-40} and Set B = {-1,-34,-35,-45,-15,-42,-48,-7}. What is the cardinal number of A, B, their union and intersection?

Union = {-47,-36,-41,-28,-11,-40,-1,-34,-35,-45,-15,-42,-48,-7}
Intersection = {}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 57

### Find the Union and Intersection of two sets A and B where Set A = {-35,-21,-5,-19,-30,-20} and Set B = {-46,-38}. What is the cardinal number of A, B, their union and intersection?

Union = {-35,-21,-5,-19,-30,-20,-46,-38}
Intersection = {}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 8
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 58

### Find the Union and Intersection of two sets A and B where Set A = {-44,-30,-18,-24,-19,-40,-38} and Set B = {-1,-6,-21,-4,-3,-5}. What is the cardinal number of A, B, their union and intersection?

Union = {-44,-30,-18,-24,-19,-40,-38,-1,-6,-21,-4,-3,-5}
Intersection = {}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 59

### Find the Union and Intersection of two sets A and B where Set A = {-19,-28,-36,-31,-10} and Set B = {-16,-17,-20}. What is the cardinal number of A, B, their union and intersection?

Union = {-19,-28,-36,-31,-10,-16,-17,-20}
Intersection = {}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 8
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 60

### Find the Union and Intersection of two sets A and B where Set A = {-28,-44,-6,-31,-39,-43,-21,-33,-17} and Set B = {-7,-8,-39,-1,-34,-40,-41,-31,-3,-37}. What is the cardinal number of A, B, their union and intersection?

Union = {-28,-44,-6,-31,-39,-43,-21,-33,-17,-7,-8,-1,-34,-40,-41,-3,-37}
Intersection = {-31,-39}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 17
Cardinal number of their intersection = number of elements in their intersection = 2

Example 61

### Find the Union and Intersection of two sets A and B where Set A = {-28,-33,-46,-3,-25,-16,-11,-5,-38} and Set B = {-50,-44,-35,-8,-47,-2,-12,-42}. What is the cardinal number of A, B, their union and intersection?

Union = {-28,-33,-46,-3,-25,-16,-11,-5,-38,-50,-44,-35,-8,-47,-2,-12,-42}
Intersection = {}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 17
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 62

### Find the Union and Intersection of two sets A and B where Set A = {-10,-6} and Set B = {-43,-5,-30,-28}. What is the cardinal number of A, B, their union and intersection?

Union = {-10,-6,-43,-5,-30,-28}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 6
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 63

### Find the Union and Intersection of two sets A and B where Set A = {-16,-42,-10,-45} and Set B = {-32,-27,-28,-44,-10,-31,-33}. What is the cardinal number of A, B, their union and intersection?

Union = {-16,-42,-10,-45,-32,-27,-28,-44,-31,-33}
Intersection = {-10}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 64

### Find the Union and Intersection of two sets A and B where Set A = {-7,-26,-50,-30,-46,-40,-24,-29} and Set B = {-40,-41,-32,-28}. What is the cardinal number of A, B, their union and intersection?

Union = {-7,-26,-50,-30,-46,-40,-24,-29,-41,-32,-28}
Intersection = {-40}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 1

Example 65

### Find the Union and Intersection of two sets A and B where Set A = {-20,-5,-41,-28,-48,-33,-25} and Set B = {-6,-30,-34,-40,-23,-20,-15,-1,-24,-48}. What is the cardinal number of A, B, their union and intersection?

Union = {-20,-5,-41,-28,-48,-33,-25,-6,-30,-34,-40,-23,-15,-1,-24}
Intersection = {-20,-48}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 15
Cardinal number of their intersection = number of elements in their intersection = 2

Example 66

### Find the Union and Intersection of two sets A and B where Set A = {-7,-50,-36,-27} and Set B = {-13,-15,-40,-38,-5,-26,-42,-39,-46,-17,-33}. What is the cardinal number of A, B, their union and intersection?

Union = {-7,-50,-36,-27,-13,-15,-40,-38,-5,-26,-42,-39,-46,-17,-33}
Intersection = {}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 11
Cardinal number of their union = number of elements in their union = 15
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 67

### Find the Union and Intersection of two sets A and B where Set A = {-2,-39,-11,-44,-4} and Set B = {-7,-15,-5,-29,-21,-40,-42}. What is the cardinal number of A, B, their union and intersection?

Union = {-2,-39,-11,-44,-4,-7,-15,-5,-29,-21,-40,-42}
Intersection = {}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 68

### Find the Union and Intersection of two sets A and B where Set A = {-38,-48,-32,-17,-42,-9,-37} and Set B = {-38,-31,-3,-15}. What is the cardinal number of A, B, their union and intersection?

Union = {-38,-48,-32,-17,-42,-9,-37,-31,-3,-15}
Intersection = {-38}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 69

### Find the Union and Intersection of two sets A and B where Set A = {-38,-19,-17,-20,-43} and Set B = {-41,-30,-46,-43,-3,-14}. What is the cardinal number of A, B, their union and intersection?

Union = {-38,-19,-17,-20,-43,-41,-30,-46,-3,-14}
Intersection = {-43}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 70

### Find the Union and Intersection of two sets A and B where Set A = {-31,-29,-23} and Set B = {-25,-43,-45,-11,-27,-29,-6,-31}. What is the cardinal number of A, B, their union and intersection?

Union = {-31,-29,-23,-25,-43,-45,-11,-27,-6}
Intersection = {-31,-29}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 9
Cardinal number of their intersection = number of elements in their intersection = 2

Example 71

### Find the Union and Intersection of two sets A and B where Set A = {-43,-4} and Set B = {-4,-23,-35,-42,-46,-48,-12,-41}. What is the cardinal number of A, B, their union and intersection?

Union = {-43,-4,-23,-35,-42,-46,-48,-12,-41}
Intersection = {-4}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 9
Cardinal number of their intersection = number of elements in their intersection = 1

Example 72

### Find the Union and Intersection of two sets A and B where Set A = {-33,-48,-47} and Set B = {-16,-36,-12,-19,-6,-7,-24,-23}. What is the cardinal number of A, B, their union and intersection?

Union = {-33,-48,-47,-16,-36,-12,-19,-6,-7,-24,-23}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 73

### Find the Union and Intersection of two sets A and B where Set A = {-24,-21,-20,-48,-2,-23,-34,-14,-16,-37} and Set B = {-26,-43,-18,-10,-32,-30,-28,-27}. What is the cardinal number of A, B, their union and intersection?

Union = {-24,-21,-20,-48,-2,-23,-34,-14,-16,-37,-26,-43,-18,-10,-32,-30,-28,-27}
Intersection = {}
Cardinal number of A = Number of elements in A = 10
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 18
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 74

### Find the Union and Intersection of two sets A and B where Set A = {-18,-47,-34,-8,-45,-20} and Set B = {-22,-23,-44,-17,-40}. What is the cardinal number of A, B, their union and intersection?

Union = {-18,-47,-34,-8,-45,-20,-22,-23,-44,-17,-40}
Intersection = {}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 75

### Find the Union and Intersection of two sets A and B where Set A = {-11,-40} and Set B = {-18,-10,-30,-49,-36,-44,-22}. What is the cardinal number of A, B, their union and intersection?

Union = {-11,-40,-18,-10,-30,-49,-36,-44,-22}
Intersection = {}
Cardinal number of A = Number of elements in A = 2
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 9
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 76

### Find the Union and Intersection of two sets A and B where Set A = {-9,-38,-14,-6} and Set B = {-3,-4,-10,-38,-15,-5,-26,-31,-17,-41}. What is the cardinal number of A, B, their union and intersection?

Union = {-9,-38,-14,-6,-3,-4,-10,-15,-5,-26,-31,-17,-41}
Intersection = {-38}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 1

Example 77

### Find the Union and Intersection of two sets A and B where Set A = {-1,-49,-12,-23,-41,-18} and Set B = {-14,-5}. What is the cardinal number of A, B, their union and intersection?

Union = {-1,-49,-12,-23,-41,-18,-14,-5}
Intersection = {}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 8
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 78

### Find the Union and Intersection of two sets A and B where Set A = {-40,-26,-35,-16,-37,-24,-18} and Set B = {-15,-20,-24,-30,-19,-35,-26,-42,-13}. What is the cardinal number of A, B, their union and intersection?

Union = {-40,-26,-35,-16,-37,-24,-18,-15,-20,-30,-19,-42,-13}
Intersection = {-26,-35,-24}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 3

Example 79

### Find the Union and Intersection of two sets A and B where Set A = {-5,-4,-42} and Set B = {-48,-16}. What is the cardinal number of A, B, their union and intersection?

Union = {-5,-4,-42,-48,-16}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 2
Cardinal number of their union = number of elements in their union = 5
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 80

### Find the Union and Intersection of two sets A and B where Set A = {-27,-37,-20,-39,-19,-5,-11,-1} and Set B = {-39,-28,-46,-23}. What is the cardinal number of A, B, their union and intersection?

Union = {-27,-37,-20,-39,-19,-5,-11,-1,-28,-46,-23}
Intersection = {-39}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 1

Example 81

### Find the Union and Intersection of two sets A and B where Set A = {-9,-33,-25,-14,-21,-23,-18} and Set B = {-22,-28,-5,-40,-46}. What is the cardinal number of A, B, their union and intersection?

Union = {-9,-33,-25,-14,-21,-23,-18,-22,-28,-5,-40,-46}
Intersection = {}
Cardinal number of A = Number of elements in A = 7
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 82

### Find the Union and Intersection of two sets A and B where Set A = {-29,-41,-2,-40,-5,-36} and Set B = {-5,-26,-43,-36,-1,-47,-32}. What is the cardinal number of A, B, their union and intersection?

Union = {-29,-41,-2,-40,-5,-36,-26,-43,-1,-47,-32}
Intersection = {-5,-36}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 2

Example 83

### Find the Union and Intersection of two sets A and B where Set A = {-20,-29,-25,-11,-17,-24,-7,-50,-38} and Set B = {-41,-4,-44}. What is the cardinal number of A, B, their union and intersection?

Union = {-20,-29,-25,-11,-17,-24,-7,-50,-38,-41,-4,-44}
Intersection = {}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 84

### Find the Union and Intersection of two sets A and B where Set A = {-44,-29,-34,-4,-11} and Set B = {-8,-16,-7,-38,-21,-45,-14,-6,-47}. What is the cardinal number of A, B, their union and intersection?

Union = {-44,-29,-34,-4,-11,-8,-16,-7,-38,-21,-45,-14,-6,-47}
Intersection = {}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 9
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 85

### Find the Union and Intersection of two sets A and B where Set A = {-45,-12,-49,-46,-37,-1,-21,-9,-29} and Set B = {-18,-4,-46,-17}. What is the cardinal number of A, B, their union and intersection?

Union = {-45,-12,-49,-46,-37,-1,-21,-9,-29,-18,-4,-17}
Intersection = {-46}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 1

Example 86

### Find the Union and Intersection of two sets A and B where Set A = {-2,-11,-40,-21,-25,-45,-1,-34,-6,-49} and Set B = {-32,-45,-19,-15,-30,-23,-42,-24,-33,-25}. What is the cardinal number of A, B, their union and intersection?

Union = {-2,-11,-40,-21,-25,-45,-1,-34,-6,-49,-32,-19,-15,-30,-23,-42,-24,-33}
Intersection = {-25,-45}
Cardinal number of A = Number of elements in A = 10
Cardinal number of B = Number of elements in A = 10
Cardinal number of their union = number of elements in their union = 18
Cardinal number of their intersection = number of elements in their intersection = 2

Example 87

### Find the Union and Intersection of two sets A and B where Set A = {-19,-23,-24,-6,-32} and Set B = {-22,-35,-7,-30,-27,-10}. What is the cardinal number of A, B, their union and intersection?

Union = {-19,-23,-24,-6,-32,-22,-35,-7,-30,-27,-10}
Intersection = {}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 88

### Find the Union and Intersection of two sets A and B where Set A = {-16,-41,-20} and Set B = {-16,-21,-43,-31}. What is the cardinal number of A, B, their union and intersection?

Union = {-16,-41,-20,-21,-43,-31}
Intersection = {-16}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 4
Cardinal number of their union = number of elements in their union = 6
Cardinal number of their intersection = number of elements in their intersection = 1

Example 89

### Find the Union and Intersection of two sets A and B where Set A = {-27,-22,-12,-50,-15,-42,-17,-23} and Set B = {-38,-28,-1,-49,-11,-42,-10}. What is the cardinal number of A, B, their union and intersection?

Union = {-27,-22,-12,-50,-15,-42,-17,-23,-38,-28,-1,-49,-11,-10}
Intersection = {-42}
Cardinal number of A = Number of elements in A = 8
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 14
Cardinal number of their intersection = number of elements in their intersection = 1

Example 90

### Find the Union and Intersection of two sets A and B where Set A = {-36,-13,-4} and Set B = {-21,-9,-2,-25,-29,-47,-31,-7}. What is the cardinal number of A, B, their union and intersection?

Union = {-36,-13,-4,-21,-9,-2,-25,-29,-47,-31,-7}
Intersection = {}
Cardinal number of A = Number of elements in A = 3
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 11
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 91

### Find the Union and Intersection of two sets A and B where Set A = {-48,-30,-20,-6} and Set B = {-20,-38,-47,-30,-34}. What is the cardinal number of A, B, their union and intersection?

Union = {-48,-30,-20,-6,-38,-47,-34}
Intersection = {-30,-20}
Cardinal number of A = Number of elements in A = 4
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 7
Cardinal number of their intersection = number of elements in their intersection = 2

Example 92

### Find the Union and Intersection of two sets A and B where Set A = {-23,-11,-41,-26,-32} and Set B = {-31,-48,-4,-41,-16,-10}. What is the cardinal number of A, B, their union and intersection?

Union = {-23,-11,-41,-26,-32,-31,-48,-4,-16,-10}
Intersection = {-41}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 6
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 1

Example 93

### Find the Union and Intersection of two sets A and B where Set A = {-24,-33,-50,-6,-43,-45} and Set B = {-39,-25,-23,-43,-3,-2,-21,-14}. What is the cardinal number of A, B, their union and intersection?

Union = {-24,-33,-50,-6,-43,-45,-39,-25,-23,-3,-2,-21,-14}
Intersection = {-43}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 8
Cardinal number of their union = number of elements in their union = 13
Cardinal number of their intersection = number of elements in their intersection = 1

Example 94

### Find the Union and Intersection of two sets A and B where Set A = {-16,-32,-50,-11,-31,-46,-7,-47,-38} and Set B = {-37,-15,-9,-32,-47}. What is the cardinal number of A, B, their union and intersection?

Union = {-16,-32,-50,-11,-31,-46,-7,-47,-38,-37,-15,-9}
Intersection = {-32,-47}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 5
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 2

Example 95

### Find the Union and Intersection of two sets A and B where Set A = {-38,-14,-48,-39,-3,-11} and Set B = {-24,-13,-44}. What is the cardinal number of A, B, their union and intersection?

Union = {-38,-14,-48,-39,-3,-11,-24,-13,-44}
Intersection = {}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 9
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 96

### Find the Union and Intersection of two sets A and B where Set A = {-26,-7,-45,-1,-24,-9,-19,-8,-3} and Set B = {-16,-40,-41}. What is the cardinal number of A, B, their union and intersection?

Union = {-26,-7,-45,-1,-24,-9,-19,-8,-3,-16,-40,-41}
Intersection = {}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 97

### Find the Union and Intersection of two sets A and B where Set A = {-40,-18,-1,-14,-7,-41} and Set B = {-48,-5,-27}. What is the cardinal number of A, B, their union and intersection?

Union = {-40,-18,-1,-14,-7,-41,-48,-5,-27}
Intersection = {}
Cardinal number of A = Number of elements in A = 6
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 9
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 98

### Find the Union and Intersection of two sets A and B where Set A = {-20,-49,-27,-10,-32} and Set B = {-39,-14,-45,-1,-6,-27,-49}. What is the cardinal number of A, B, their union and intersection?

Union = {-20,-49,-27,-10,-32,-39,-14,-45,-1,-6}
Intersection = {-49,-27}
Cardinal number of A = Number of elements in A = 5
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 10
Cardinal number of their intersection = number of elements in their intersection = 2

Example 99

### Find the Union and Intersection of two sets A and B where Set A = {-15,-48,-30,-19,-1,-29,-27,-44,-4} and Set B = {-24,-50,-47,-26,-33,-2,-42}. What is the cardinal number of A, B, their union and intersection?

Union = {-15,-48,-30,-19,-1,-29,-27,-44,-4,-24,-50,-47,-26,-33,-2,-42}
Intersection = {}
Cardinal number of A = Number of elements in A = 9
Cardinal number of B = Number of elements in A = 7
Cardinal number of their union = number of elements in their union = 16
Cardinal number of their intersection = number of elements in their intersection = 0 (null set)

Example 100

### Find the Union and Intersection of two sets A and B where Set A = {-25,-3,-10,-24,-23,-19,-32,-46,-34,-28} and Set B = {-3,-14,-12}. What is the cardinal number of A, B, their union and intersection?

Union = {-25,-3,-10,-24,-23,-19,-32,-46,-34,-28,-14,-12}
Intersection = {-3}
Cardinal number of A = Number of elements in A = 10
Cardinal number of B = Number of elements in A = 3
Cardinal number of their union = number of elements in their union = 12
Cardinal number of their intersection = number of elements in their intersection = 1