Помогите пожалуйста....................................................
Y`=-2√3sinx+2cosx-2=0 √3sinx-cosx=-1 2(√3/2sinx-1/2cosx)=-1 sin(x-π/6)=-1/2 x-π/6=-π/6+2πn U x-π/6=7π/6+2πk x=2πn,n∈z U x=4π/3+2πk,k∈z