how can i combine these to get a form of (SinX)^2? i just need (SinX)^2 but no Cosines

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- Mar 25th 2011, 12:26 AMJazKW347SinX TanX how can i combine these to get a form of (SinX)^2
how can i combine these to get a form of (SinX)^2? i just need (SinX)^2 but no Cosines

- Mar 25th 2011, 12:27 AMProve It
Remember that $\displaystyle \displaystyle \tan{x} = \frac{\sin{x}}{\cos{x}} = \pm\frac{\sin{x}}{\sqrt{1 - \sin^2{x}}}$.

So $\displaystyle \displaystyle \sin{x}\tan{x} = \pm\frac{\sin^2{x}}{\sqrt{1 - \sin^2{x}}}$.