First Derivative Test for Local Maxima and Minima

Author:R D Sharma
12th CBSE
IMPORTANT

First Derivative Test for Local Maxima and Minima: Overview

This topic discusses the first derivative test that is used to determine whether a function is increasing or decreasing in its domain. It is also used to identify its local maxima or minima.

Important Questions on First Derivative Test for Local Maxima and Minima

HARD
IMPORTANT

Find the points of local maxima or local minima, if any, of the following functions, using the first derivative test. Also, find the local maximum or local minimum values, as the case may be:

f(x)=sin2x-x,-π2xπ2

HARD
IMPORTANT

Find the points of local maxima or local minima of fx=x2+2x,x>0 using the first derivative test. Also, find the local maximum or minimum values.

HARD
IMPORTANT

Find the points of local maxima or minima of fx=x32x-13 using the first derivative test. Also, find the local maximum or local minimum values.

HARD
IMPORTANT

Find the points of local maxima or minima of fx=x1-x,x>0 using the first derivation test. Also, find the local maximum or local minimum values.

HARD
IMPORTANT

Find the points of local maxima or minima of fx=1x2+2 using the first derivative test. Also, find the maximum and minimum values.

HARD
IMPORTANT

Find the point of local maxima or minima for fx=x-1x+22 using the first derivative test. Also, find the maximum and minimum value.

HARD
IMPORTANT

Find the points of local maxima or minima of fx=x3x-12 using the first derivative test. Also, find the local maximum or local minimum values.

MEDIUM
IMPORTANT

Find the points of local maxima or minima for fx=x3-3x using the first derivative test. Also, find the local maximum or minimum value.

MEDIUM
IMPORTANT

Find the points of local maxima or minima for fx=x-54 using the first derivative test. Also find the local maximum or minimum values.

HARD
IMPORTANT

Find the points of local maxima or local minima, if any, of the following functions, using the first derioative test. Also, find the local maximum or local minimum values, as the case may be:

f(x)=cosx, 0<x<π

HARD
IMPORTANT

Find the points of local maxima or local minima, if any, of the following functions, using the first derioative test. Also, find the local maximum or local minimum values, as the case may be:

f(x)=2sinx-x,-π2xπ2

HARD
IMPORTANT

Find the points of local maxima or local minima and corresponding local maximum and local minimum values of the following functions. Also, find the points of inflection, if any:

f(x)=x3-6x2+9x+15

HARD
IMPORTANT

Find the points of local maxima or local minima, if any, of the following functions, using the first derivative test. Also, find the local maximum or local minimum values, as the case may be:

f(x)=sinx-cosx,0<x<2π

HARD
IMPORTANT

Find the points of local maxima or local minima and corresponding local maximum and local minimum values of the following functions. Also, find the points of inflection, if any:

f(x)=sin2x, 0<x<π