Quote Originally Posted by TacticalPro View Post
shoot me.... i cramped, thought it was sin^(2x+x)=1

so anyway it should be:

sin2x+sinx=1

sin3x=1

sinx=1/3
Sorry, but if you cannot simplify sin(2x + x) and solve sin(3x) = 1 correctly then you should not even consider attempting to solve sin2xcosx+cos2xsinx=1. You need to go right back to the basics and review them carefully, in partnership with your teacher or a live tutor.