sinx*cosy=3/4
x+y=5p/6 система уравнений
Помогите срочно

{x+y=5π/6{sinx*cosy=3/4⇒1/2*(sin(x-y)+sin(x+y))=3/4sin(x-y)+sin(x-+y)=3/2sin(x-y)+sin5π/6=3/2sin(x-y)=3/2-1/2sin(x-y)=1{x-y=π/2{x+y=5π/62x=4π/3x=2π/3y=5π/6-2π/3=5π/6-4π/6y=π/6(2π/3;π/6)