`y = cos(4x)` Find the derivative of the function.

Textbook Question

Chapter 2, 2.4 - Problem 43 - Calculus of a Single Variable (10th Edition, Ron Larson).
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mathace | (Level 3) Assistant Educator

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Given: `y=cos(4x)`

To find the derivative of the function use the chain rule.

`y'=-4sin(4x)`

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