Sin3x+ П/4=(Меньше или равно)=-корень (2) /2

Question

Grizzzli · Accepted Answer

sin (3x+ П/4) ≤√2/2-π-arcsina<x<arcsina+2πn, n∈z-π-π/4+2πn<3x+ П/4<π/4+2πn, n∈z-2π/2-π/2+2πn<3x<2πn, n∈z-3π/2+2πn<3x<2πn, n∈z-π/2+2πn/3<x<2πn/3, n∈z