Ответ Автор - nKrynka √(sin(π/3 - x/2)sin(π/3 - x/2) ≥ 0sin(x/2 - π/3) ≤ 0- π - arcsin(0) + 2πk ≤ x/2 - π/3 ≤ arcsin(0) + 2πk, k∈Z- π + 2πk ≤ x/2 ≤ 2πk, k∈Z- π + π/3 + 2πk ≤ x/2 ≤ π/3 + 2πk, k∈Z-2π/3 + 2πk ≤ x/2 ≤ π/3 + 2πk, k∈Z-4π/3 +4πk ≤ x ≤ 2π/3 + 4πk, k∈Z