Question 3 In(x²) + 4 2 Consider the continuous function h with h'(x) 3.1 Find and represent the domain of the function, using set notation. 3.2 Use a number line and the first derivative test to identify the local extreme(s) of the function h by giving the exact x-value(s) of the local extreme(s).

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Question 3
In(x²) + 4
Consider the continuous function h with h'(x)
3.1 Find and represent the domain of the function, using set notation.
3.2 Use a number line and the first derivative test to identify the local extreme(s) of the function h
by giving the exact x-value(s) of the local extreme(s).
Transcribed Image Text:Question 3 In(x²) + 4 Consider the continuous function h with h'(x) 3.1 Find and represent the domain of the function, using set notation. 3.2 Use a number line and the first derivative test to identify the local extreme(s) of the function h by giving the exact x-value(s) of the local extreme(s).
Expert Solution
Step 1

3.1

The function can be obtained using the fundamental theorem of Calculus:

h(x)=h'(x) dx

h(x)=ln(x2)+42xdx

h(x)=2 ln(x)+42xdx

h(x)= ln(x)xdx+4xdx

Now, use by parts :

h(x)=ln(x)1x dx-d(ln(x))dx·1xdxdx +8x+ c, where c is a constant.

h(x)=2xln(x)-2xxdx+8x+c

h(x)=2xln(x)-2xdx+8x+c

h(x)=2xln(x)-4x+8x+c

h(x)=2xln(x)+4x+c

 

Now, the domain will be x>0 all positive real numbers, i.e., 0, +.

 

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