Ответ: t = π/18 + πn/3, t = 5π/18 + πn/3, t = -π/18 + πn/3, t = -5π/18 + πn/3, n ∈ Z
Решаем уравнение |sin 3t| = 1/2:
Рассматриваем два случая: sin 3t = 1/2 и sin 3t = -1/2
sin 3t = 1/2:
3t = π/6 + 2πn, 3t = 5π/6 + 2πn
t = π/18 + 2πn/3, t = 5π/18 + 2πn/3
sin 3t = -1/2:
3t = -π/6 + 2πn, 3t = -5π/6 + 2πn
t = -π/18 + 2πn/3, t = -5π/18 + 2πn/3
Ответ: t = π/18 + 2πn/3, t = 5π/18 + 2πn/3, t = -π/18 + 2πn/3, t = -5π/18 + 2πn/3, n ∈ Z