Trigonometric Integral

1. Feb 2, 2006

Physter

Haven't done integrals in such a long time and now I'm having some trouble with this question here. Any help would be appreciated. Thanks

2. Feb 2, 2006

arildno

Using the double angle formula as you do here is of course legitimate, however, there is a simpler choice:
Substitute $u=\sin(t)$ instead.

3. Feb 2, 2006

Physter

This looks better I hope?

4. Feb 2, 2006

Jameson

+C of course :). But yes, that's correct.

5. Feb 2, 2006

Physter

^^^Arggg I always forget the constant. Thanks