Need some help..

$\displaystyle \int \frac{\sin(x)}{1+ \cos^2(x)}dx$

Where do I begin? I imagine I need some identities and substitution, but I'm not sure.

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- Jun 26th 2007, 06:05 PMcinderIntegral Question
Need some help..

$\displaystyle \int \frac{\sin(x)}{1+ \cos^2(x)}dx$

Where do I begin? I imagine I need some identities and substitution, but I'm not sure. - Jun 26th 2007, 06:08 PMtopsquark
- Jun 26th 2007, 06:15 PMcinder
- Jun 26th 2007, 06:23 PMcinder
Is it $\displaystyle -(\arctan(u)+C)$?

- Jun 26th 2007, 06:25 PMtopsquark
- Jun 26th 2007, 06:26 PMcinder
- Jun 26th 2007, 06:28 PMtopsquark