Needing Trig Help

• March 28th 2009, 03:05 PM
Needing Trig Help
I need help finding the exact solutions of the equation in the interval (0, 2π):

sin 2x - sin x = 0
• March 28th 2009, 03:11 PM
mr fantastic
Quote:

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.