# Math Help - [SOLVED] Trig problems

1. ## [SOLVED] Trig problems

hi again. im struggling with these trig questions.
1) cos 2x / cosx + sin x= cosx -sinx

2)1/2(cos 2x - sin 2x) = cos^2x-cosxsinx - 1/2

thanks again.

2. ive managed to do this on my own. thanks to anyone who was trying to help.