   Chapter 8.4, Problem 15E ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919

#### Solutions

Chapter
Section ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919
Textbook Problem
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# Differentiating Trigonometric Functions In Exercises 1-28, find the derivative of the trigonometric function. See Examples 1, 2, 3, f ( t )  =  t 4   cos   t

To determine

To calculate: The derivative of the trigonometric function f(t)=t4cost.

Explanation

Given Information:

The provided trigonometric function is f(t)=t4cost.

Formula used:

Cosine differentiation rule:

ddx[cosu]=sinududx

Product rule of differentiation:

ddx[a(x)b(x)]=a(x)b(x)+b(x)a(x)

General power rule of differentiation:

ddx[xn]=nxn1

Calculation:

Consider the provided trigonometric function is,

f(t)=t4cost

Apply the product rule of differentiation to find the derivative of the above function

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