Question

Problem 38c

Answer 1

Given information

The function given is:  .

Step-by-step explanation

Step 1.

Local maximum and Local minimum of a function:

 

• At a critical point  , a function   is said to have a local maximum if   changes from positive to negative.
• At a critical point  , a function   is said to have a local minimum if   changes from negative to positive.

Note:   doesn't change its sign at ,  then doesn't have a local maximum or local minimum at  .