- #1

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## Homework Statement

f(x)=(x

^{2}-x)(sin(x))

## Homework Equations

Chain rule

Product rule

## The Attempt at a Solution

f'g(x)*g'(x)

cosx

(2x-x)(cosx)

Would you use the product rule after using the power rule and chain rule?

- Thread starter Joyci116
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- #1

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f(x)=(x

Chain rule

Product rule

f'g(x)*g'(x)

cosx

(2x-x)(cosx)

Would you use the product rule after using the power rule and chain rule?

- #2

SammyS

Staff Emeritus

Science Advisor

Homework Helper

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Review the product rule !

- #3

Mark44

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???## Homework Statement

f(x)=(x^{2}-x)(sin(x))

## Homework Equations

Chain rule

Product rule

## The Attempt at a Solution

f'g(x)*g'(x)

cosx

This looks like you're attempting to use the chain rule.

No. Use the product rule first. You don't need the chain rule at all.(2x-x)(cosx)

Would you use the product rule after using the power rule and chain rule?

- #4

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(x^{2}-x)cosx+sinx(2x-1)

X^{2}cosx-xcosx+2xsinx-sinx

X

- #5

eumyang

Homework Helper

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That's more like it!

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