solve:

I use these trig subs:

after substituting and simplifying I end up here:

Any help in getting "unstuck" would be appreciated!

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- October 31st 2007, 01:48 PMGot5onItIntgration again - Trig Sub
solve:

I use these trig subs:

after substituting and simplifying I end up here:

Any help in getting "unstuck" would be appreciated! - October 31st 2007, 01:55 PMKrizalid
- October 31st 2007, 02:16 PMGot5onIt
Thanks Kriz for the help! :)

I can't understand how substitutes into the denominator of the original integral and give you ? Why is it not ? - October 31st 2007, 02:53 PMgalactus
Trig sub works well with this one. You have the correct integral in terms of trig functions.

I will use x instead of theta for less typing.

Rewrite as

Let

That gives the easiest of integrals:

- October 31st 2007, 05:28 PMGot5onIt