(tg x/6 +1) * (tg x-1)=0

Question

(tg x/6 +1) * (tg x-1)=0

Answer 1

Tgx/6+1=0
tgx/6=-1
x/6=-π/4+πn
x=-3π/2+6πn,n∈z
tgx-1=0
tgx=1
x=π/4+πk,k∈z