Sin5x*sin3x-sinx^2*3x=0
Sin5xsin3x-sin² 3x=0 sin3x(sin5x-1)=0 sin3x=0 или sin5x-1=0 3x=πn; n∈Z sin5x=1 x= πn/3;n∈Z 5x=π/2+2πn; n∈Z x=π/10+2πn/5; n∈Z