Question

Найдите область определения функции $y= frac{1}{tg2x-1}$

Answer 1

tg2x-1≠0
tg2x≠1
2x≠π/4+πn
x≠π/8+πn/2
x∈(-π/4+πn/2;π/8+πn/2) U (π/8+πn/2;π/4+πn/2)