Thread: Needing Trig Help

1. Needing Trig Help

I need help finding the exact solutions of the equation in the interval (0, 2π):

sin 2x - sin x = 0

2. Originally Posted by adam456006
I need help finding the exact solutions of the equation in the interval (0, 2π):

sin 2x - sin x = 0
Substitute $\sin (2x) = 2 \sin x \cos x$. Then factorise.