We just started learning about Trigonometric Integrals and I was doing pretty good with the odd numbered ones, until I got to the even. I don't really know how to approach this problem.

Any help would be great.

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- Feb 19th 2008, 02:49 PMFalconPUNCH!How should I approach this problem?
We just started learning about Trigonometric Integrals and I was doing pretty good with the odd numbered ones, until I got to the even. I don't really know how to approach this problem.

Any help would be great. - Feb 19th 2008, 03:31 PMFalconPUNCH!
Well I think I got the answer and it took me about two pages to get it trail and error.

Here's how I approached it:

I substituted with

I used half angle formula to get

I expanded everything and got

I went from there and did a few more steps and got

Can anyone check if I did it correct? - Feb 19th 2008, 04:18 PMJhevon
- Feb 19th 2008, 04:56 PMFalconPUNCH!
Thanks yeah the page got messy so I might have multiplied incorrectly.