C Cassie C New member Mar 15, 2010 #1 So it is asking to prove the identity and it gives me (1+cosx)(1-cosx)=sin^2x im stumped! it might be easy but i dont see what to do in my notes
So it is asking to prove the identity and it gives me (1+cosx)(1-cosx)=sin^2x im stumped! it might be easy but i dont see what to do in my notes
