Тригонометрические уравнения

sin x = 0, x = πn

sin x = 1, x = π/2 + 2 πn

sin x = -1, x = - π/2 + 2 πn

cos x = 0, x = π/2 + 2 πn

cos x = 1, x = 2πn

cos x = -1, x = π + 2 πn