18. Given f(x)=1+In(cos(x)) , find: 1+[f'(x)]´dx= ? A. In sec(x)+ tan(x)+C B. In sec(x)– tan(x)+C C. 2ln sec(x)+ tan(x) +C D. 2ln sec(x)– tan(x) +C E. -In sec(x)+cos(x)+C

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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18. Given f(x)=1+ In(cos(x)) , find: 1+[f'(x)]´dx = ?
A. In sec(x)+ tan(x) +C
B. In|sec(x)– tan(x)|+C
C. 2 ln sec(x)+ tan(x) +C
D. 2ln|sec(x)– tan(x)|+C
E. –In sec(x)+cos(x)+C
Transcribed Image Text:18. Given f(x)=1+ In(cos(x)) , find: 1+[f'(x)]´dx = ? A. In sec(x)+ tan(x) +C B. In|sec(x)– tan(x)|+C C. 2 ln sec(x)+ tan(x) +C D. 2ln|sec(x)– tan(x)|+C E. –In sec(x)+cos(x)+C
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