The value of cos 90° - 30° is July 8, 2019 16 32 64 128 The value of cos 90 30 is mcq Cos 0 + cos 45 + sin 30 into sin 90 - cos 45 + cos 60 In a right triangle one angle measures x° where sin ° = x 4 5 . what is cos(90° − °) x