√(3)tg(-4x-(4/7)п) = -3tg(-4x-(4/7)п) = -3 / √3tg(-4x-(4/7)п) = -3 *√3 / (√3*√3)tg(-4x-(4/7)п) = -√3-4x-(4/7)п = arc tg(-√3)-4x-(4/7)п = (-π/3) + πk, k∈Z.-4x = (-π/3) + (4π/7) + πkx = (-π/(-4*3) + (4π/(-4*7) + (π/-4)*kx = π/12 - π/7 - (π/4)*kx = (-5/84)*π - (π/4)*k.Можно вынести общий множитель за скобки:
,)
k∈Z.