Задание:
sin(x/2+6π) = 1
Способ 1:
x/2 + 6π = π/2 + 2πn, n € Z
x/2 = π/2 – 6π + 2πn
x/2 = -11π/2 + 2πn
x = -11 π + 4πn
Ответ: π + 4πn, n € Z
Способ 2:
sin(x/2) = 1
x/2 = π/2 + 2πn, n € Z
x = π + 4πn