SOLUTION: If f(x) = cos 2 theta + sin theta, then f (pi/2) equals 1) 1 2) 2 3) -2 4) 0 Please show work thanks

Algebra ->  Trigonometry-basics -> SOLUTION: If f(x) = cos 2 theta + sin theta, then f (pi/2) equals 1) 1 2) 2 3) -2 4) 0 Please show work thanks      Log On