SinX TanX how can i combine these to get a form of (SinX)^2

• Mar 25th 2011, 01:26 AM
JazKW347
SinX 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, 01:27 AM
Prove It
Remember that $\displaystyle \tan{x} = \frac{\sin{x}}{\cos{x}} = \pm\frac{\sin{x}}{\sqrt{1 - \sin^2{x}}}$.

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