2sinx<-1<br> Допоможіть
Sinx < - 1/2 - π - arcsin(-1/2) + 2πn < x < arcsin(-1/2) + 2πn, n∈Z - π + π/6 + 2πn < x < - π/6 + 2πn, n∈Z - 5π/6 + 2πn < x < - π/6 + 2πn, n∈Z