If f(x) = sin(2x) +1, what is f" (x)? Enter the answer in the box. f"(x) =

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter2: Graphical And Tabular Analysis
Section2.1: Tables And Trends
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If f(x) = sin(2x) +1, what is f"(x)?
Enter the answer in the box.
f"(x) =
Transcribed Image Text:If f(x) = sin(2x) +1, what is f"(x)? Enter the answer in the box. f"(x) =
Expert Solution
Step 1 : Analysis

Given :

fx = sin2x+1

Step 2 : Simplification

f'x = ddxsin2x+1

Using u ± v' = u' ± v',

f'x = ddxsin2x + ddx1

Using ddxsinx = cosx, chain rule and ddxc = 0 , where c be any constant.

f'x = cos2xddx2x + 0f'x = 2cos2xddxx f'x = 2cos2x 

Therefore f'x = 2cos2x 

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