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Differential Calculus- Solved Problem Set III with MCQ Quiz- Increasing, Decreasing functions; maxima, minima, extreme values; Rolle's Theorem ; Inspecting Polynomials



Calculus - Differential Calculus - Problem Set III

 
 Differentiation- Continuity; Changing Independent Variables

Calculus - Differential Calculus - Problem Set III - Outline of Contents (Also try out the MCQ Quiz at the end):

Target Audience: High School Students, College Freshmen and Sophomores, students preparing for the International Baccalaureate (IB), AP Calculus AB, AP Calculus BC, A Level, Singapore/GCE A-Level; 

Class 11/12 students in India preparing for ISC/CBSE and Entrance Examinations like the IIT-JEE/AIEEE Anyone else who needs this Tutorial as a reference!


This tutorial contains examples and solved problems - related to increasing and decreasing functions; maxima, minima and extreme values; Rolle's Theorem ; inspection of polynomials and trigonometric expressions.


Here's a quick look at the kind of problems which have been solved in this tutorial.  We will try to sketch some curves and inspect them visually as well.
  • Verify Rolle’s theorem for (i)x2 in [−1, 1].    (ii)x(x + 3)e−x/2 in [−3, 0].
  • Learning to apply Leibnitz formula for differentiation.
  • Seperate the intervals in which the polynomial 2x3 − 15x2 + 36x + 1 is increasing or decreasing. Also draw the graph of the function.
  • Show that x2 > (1 + x)[log (1 + x)]2 for x > 0.
  • Find the greatest and the least values of 3x4 − 2x3 − 6x2 + 6x + 1 in the interval [0, 2].
  • Examine the polynomial 10x6 − 24x5 + 15x4 − 40x3 + 108 for maximum and minimum values.
  • Find the extreme values of x4 − 8x3 + 22x2 − 24x + 1 and distinguish between them.
  • Find the maximum and minimum values of the polynomial 8x5 − 15x4 + 10x2 .
  • Find the maximum and the minimum values of the function sin x + cos 2x.
  • Find the slope and concavity of the graph of x2 y + y 4 = 4 + 2x at the point (−1, 1).
  • Consider the equation x2 + xy + y 2 = 1. Find equations for y and y in terms of x and y only.
This way, you will gain an understanding of maxima and minima; be familiar with what it means for a function to be monotonically increasing or monotonically decreasing or have zeros, in a particular range. The process of finding and identifying a maxima or minima is known as optimization. 

To gain a good understanding of maxima/minima, it is important to visualize and draw curves or figures. Looking at a function, one should intuitively be able to identify its zeros or the points where dy/dx = 0, in-flexion points, points of continuity and dis-continuity; points where the curve may not be differentiable. 

Here's the complete tutorial with problems, solutions and plots of curves (try out the MCQ Quiz below this) :



MCQ Quiz- Differential Calculus and Mean Value Theorems

Companion MCQ Quiz for Differential Calculus and Mean Value Theorems: test how much you know about the topic. Your score will be e-mailed to you at the address you provide.

MCQ Quiz- Differential Calculus, Mean Value Theorems


Our Calculus Tutorials                      

Quick and introductory definitions related to Funtions, Limits and Continuity

Functions, Limits and Continuity - Solved Problem Set I - The Domain, Range, Plots and Graphs of Functions; L'Hospital's Rule

Functions, Limits and Continuity - Solved Problem Set II - Conditions for Continuity, More Limits, Approximations for ln (1+x) and sin x for infinitesimal values of x  

Functions, Limits and Continuity - Solved Problem Set III - Continuity and Intermediate Value Theorems

Introductory concepts and definitions related to Differentiation - Basic formulas, Successive Differentiation, Leibnitz, Rolle and Lagrange Theorems, Maxima , Minima, Convexity, Concavity, etc

Differential Calculus - Solved Problem Set I - Common Exponential, Log , trigonometric and polynomial functions 

Differential Calculus - Solved Problem Set II - Derivability and continuity of functins - Change of Indepndent Variables - Finding N-th Derivatives -

Differential Calculus - Solved Problems Set III- Maximia, Minima, Extreme Values, Rolle's Theorem

Differential Calculus - Solved Problems Set IV - Points of Inflexion, Radius of Curvature, Curve Sketching

Differential Calculus - Solved Problems Set V - Curve Sketching, Parametric Curves 

Introducing Integral Calculus - Definite and Indefinite Integrals - using Substitution , Integration By Parts, ILATE rule  

Integral Calculus - Solved Problems Set I - Basic examples of polynomials and trigonometric functions, area under curves  

Integral Calculus - Solved Problems Set II - More integrals, functions involving trigonometric and inverse trigonometric ratios  

Integral Calculus - Solved Problems Set III - Reduction Formulas, Using Partial FractionsI 

Integral Calculus - Solved Problems Set IV - More of integration using partial fractions, more complex substitutions and transformations  

Integral Calculus - Solved Problems Set V- Integration as a summation of a series 

Introduction to Differential Equations and Solved Problems - Set I - Order and Degree, Linear and Non-Linear Differential Equations, Homogeneous Equations, Integrating Factor 

Differential Equations - Solved Problems - Set II - D operator, auxillary equation, General Solution 

Differential Equations - Solved Problems - Set III - More Differential Equations  

Differential Equations - Solved Problems - Set IV 


    

 




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