Sin(x/4+5П/6)=-1/2 решить

Question

Sin(x/4+5П/6)=-1/2 решить

Answer 1

Sin(x/4+5*π/6)=-1/2⇒x/4+5*π/6=arcsin(-1/2)=-π/6 ⇒х/4=-π/6-5*π/6=-π⇒х=-4*π. 

Ответ: х=-4*π