Answer Happy

Please show step by step for understanding.
Solving a Trigonometric Equation In Exercises 33-42, find all solutions of the equation in the interval [0, 27). 33. sin? x = sin x 35. cosx + sin x = 1 37. 2 sin 2x - 2 = 0 39. 3 tan - 1 = 0 41. cos 4x(cos x - 1) = 0