Найти решения неравенства sin⁡ x<-1/2, принадлежащие отрезку [−π/2;2π]
Выберите один ответ:
1) [-π/2; 7π/6) и (7π/6;11π/6)
2) [-π/2; -π/6) и (7π/6;11π/6)
3) [-π/2; π/6) и (7π/6;11π/6)
4) [-π/2; -π/6) и (-π/6;11π/6)