Cos(2x-п/3)=3 под корнем/2

cos(2x - π/3) = √3/22x - π/3 = ±π/6 + 2πn, n ∈ Z2x = ±π/6 + π/3 + 2πn, n ∈ Z.x = ±π/12 + π/6 + πn, n ∈ Z.