simplify sin(3 x)%2F((x-3) (x%2B3))-(3 sin(x) cos%5E2(x)-sin%5E3(x))%2F(x%5E2-9)

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.