Solve these three problems and show the steps taken

ve the equation on the interval [0, 27t). 40) cos 2x = 1/2 2 A) O. 271 4nt 7 37 57 7n 3 , , 3 BA4'4'4 7 7n 97 15nt C 3'8' 8' 8 D) no solution 41) sin2 x + sin x = 0 47 5nt 3n C)On, It 5n DO, n, I 2n A) O, T, 3 ' 3 B) O, TL, 2 3' 3 "' 3' 3 42) cos x = sin x 7 7n 3 5n A) A' 4 B 4' 4 C) 4 4 D) 4 2 43) 2 sin2 x = sin x 7 5n n 2n A) 2 2'3' 3 B) 6' 6 C) O, TL, 6' 6 D) 3'3