`f(x) = (x^3)cos(x)` Use the Product Rule to find the derivative of the function.

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Chapter 2, 2.3 - Problem 5 - Calculus of a Single Variable (10th Edition, Ron Larson).
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hkj1385 | (Level 1) Assistant Educator

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`f(x) = (x^3)*cos(x)`

`f'(x) = 3(x^2)*cos(x) - (x^3)*sin(x)`

`'or, f'(x) = (x^2)*[3cos(x) - x*sin(x)]`

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