sin10x-cos4x=0 помогитеее

sin10x-sin(π/2-4x)=02sin(7x-π/4)cos(3x+π/4)=0sin(7x-π/4)=07x-π/4=πn,n∈Z7x=π/4+πn,n∈Zx=π/28+πn/7,n∈Zcos(3x+π/4)=03x+π/4=π/2+πk3x=π/4+πkx=π/12+πk/3