Let f(x)=10-th (cosh (x)) Find f'(In 3).

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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Let
f(x)=10-lh (cosh (x))
Find f'(In 3).
Enter your answer below.
Transcribed Image Text:Let f(x)=10-lh (cosh (x)) Find f'(In 3). Enter your answer below.
Expert Solution
Step 1

Given:

fx=10·lncoshx

To find : f'ln3.

Following formulas are used-

           ddxlnx=1x   d dxfgx=f'gx·g'x  ddxcoshx=sinhx

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