Буду благодарен за решение. .
Sin12x=1/2*sinx-√3/2*cosx sin12x=sin(x-π/3) {12x=x-π/3+2πn⇒[11x=-π/3+2πn⇒[x=-π/33+2πn/11 {12x=π-x+π/3+2πn⇒[13x=4π/3+2πn⇒[x=4π/39+2πn/13,n∈Z