I want to go from to

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- December 28th 2011, 08:48 AMDukesimplify
I want to go from to

- December 28th 2011, 09:26 AMAmerRe: simplify
- December 28th 2011, 11:23 AMDukeRe: simplify
I take sin^4(x) out and that helps numerator but I can't see the way forward.

- December 28th 2011, 11:59 AMSironRe: simplify
We are given:

Rewriting as: