Hi, can you please help me on how to solve for this question?

Find all solutions to the equation cos (20) = sin (0). 0 = - TT 57T 271 + 2n271 , 6 + 2n7... for n = 0, +1, 12... O 2 + 2n7, 37 O 0 = 571 + 2n271, 3 + 2not , + 2n7... for n = 0, +1, +2... 6 371 + 2n7, 6 + 2nn, + 2n7... for n = 0, 41, 12... O 0 = 2 3TT 57T + 2n7 , 12 5+ 2n7... for n = 0, +1, 12... O 0 = 4 + 2nTT, 4 + 2n71, 3 O + 2n7, 3TT + 2n7... for n = 0, +1, 12... 0 = 4