- #1

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## Homework Statement

hey guys, got a question. how do ya differentiate y=ln(1+x^2)^1/2. any help would be appreciated, thanks

## Homework Equations

answer is x/(1+x^2)

- Thread starter geffman1
- Start date

- #1

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hey guys, got a question. how do ya differentiate y=ln(1+x^2)^1/2. any help would be appreciated, thanks

answer is x/(1+x^2)

- #2

Mark44

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Power rule and chain rule.

- #3

Cyosis

Homework Helper

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To get the answer you have listed your function must be [itex]\ln \sqrt{1+x^2}[/itex] and not [itex]\sqrt{\ln(1+x^2)}[/itex]. You can write [itex]\ln \sqrt{1+x^2}=\frac{1}{2}\ln (1+x^2)[/itex], perhaps this form is less intimidating?

- #4

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so the 1/2 just stays out the front without it being differentiate, i thought it dissapeared? thanks for the replys

- #5

Hurkyl

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Go check your rules of differentiation again....

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