-tg^2x+(1-sqrt(3))tgx+sqrt(3) = 0
а) (tgx-1)*(tgx+sqrt(3))=0 tgx=1 или tgx=-sqrt(3) x=(π/4)+πk, k∈Z или х= (-π/3)+πn, n∈Z б) х=(3π/4) х=(-π/3)+π=2π/3 х=(-π/3)+2π=5π/3