I have the following expression:

I need to rewrite it and end up with:

- November 7th 2012, 06:03 AMMathIsOhSoHardCan somebody show me how to go from one expression to the other?
I have the following expression:

I need to rewrite it and end up with:

- November 7th 2012, 02:53 PMrichard1234Re: Can somebody show me how to go from one expression to the other?
What is t? Or should it be ?

- November 7th 2012, 03:03 PMMathIsOhSoHardRe: Can somebody show me how to go from one expression to the other?
Nevermind, I figured it out on my own. :)

It's part of a fourier series. I found out that for all the expression will yield zero and for all the expression will yield

For expressed as an uneven integer, we can rewrite it as thus if you insert this and change to in the new expression, the work is then complete. :) Sorry for not writtign my question that good, my bad.