- #1

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## Homework Statement

Finda dw/dt

w=3xy/x²-y²

x=t

^{3}

y=e

^{2t}

## Homework Equations

w=(3t

^{3}e

^{2t})/(t

^{6}-e

^{4t})

## The Attempt at a Solution

Well,is there anothe way to solve this, instead of dw/dt; like dw/dx * dw/dt + dw/dy * dy/dt ?

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- Thread starter oswald
- Start date

- #1

- 22

- 0

Finda dw/dt

w=3xy/x²-y²

x=t

y=e

w=(3t

Well,is there anothe way to solve this, instead of dw/dt; like dw/dx * dw/dt + dw/dy * dy/dt ?

- #2

Dick

Science Advisor

Homework Helper

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- #3

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f(x) = ln [ e^ln(x+1) ]

f' = ?

- #4

Mark44

Mentor

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Simplify it a bit first to make your differentiation easier. What is ln(e^whatever)?

- #5

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well, i have this answer, but i dont understand

ln [ e^ln(x+1) ] = ln(x+1)

f'(x) = 1/(e^ln(x+1)) * e^ln(x+1) * 1/(x+1) = 1/(x+1)

- #6

Mark44

Mentor

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