- #1

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## Homework Statement

f(x) = e^(2x) and g(x) = lnx. what is the derivative of f(g(x)) at x=e

## Homework Equations

dy/dx = f'g(x) x g'(x)

## The Attempt at a Solution

i cant figure it out!

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- Thread starter meredith
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- #1

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f(x) = e^(2x) and g(x) = lnx. what is the derivative of f(g(x)) at x=e

dy/dx = f'g(x) x g'(x)

i cant figure it out!

- #2

Dick

Science Advisor

Homework Helper

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Try it! What's f'(x)? g'(x)? f'(g(x))?

- #3

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[tex][f(g(x))]'=f'(g(x))\cdot g'(x)[/tex]

take each derivative separately and put it all together if it seems too complicated, that helps me a lot

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