sin(x-п/4)= - (корень3)/2

sin(x-π/4)=-√3/2x-π/4=(-1)^n *arcsin(-√3/2)+πn, n∈Zx-π/4=(-1)^(n+1)*arcsin(√3/2)+πn, n∈Zx-π/4=(-1)^(n+1)*(π/3)+πn, n∈Zx=(-1)^(n+1)*(π/3)+π/4+πn, n∈Z