Question
Asked Oct 22, 2019
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find where f'(c)=0

f(x)=-cos4x 

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Expert Answer

Step 1

Given, function

f(x)cos 4x
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f(x)cos 4x

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Step 2

Differentiate above with respe...

f'(x)
- cos 4x)
-(
= 4 sin 4x
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f'(x) - cos 4x) -( = 4 sin 4x

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Tagged in

Math

Calculus

Derivative