cos(2x + π/6) + 1 = 0
cos(2x + π/6) = -1
2x + π/6 = π
2x = π - π/6
2x = 5π/6
x = 5π/12
Ответ: x = 5π/12.
cos(2x + π/6) + 1 = 0
cos(2x + π/6) = -1
2x + π/6 = π
2x = π - π/6
2x = 5π/6
x = 5π/12
Ответ: x = 5π/12.