1) tgx = 1
x = π/4 + πn, n∈Z
2) tgx = - 1
x = - π/4 + πn, n∈Z
3) tgx = 0
x = πk, k∈Z
4) tgx = - 2
x = arctg(-2) + πk, k∈Z
x = -arctg(2) + πk, k∈z
5) tg^2x - 6tgx + 5 = 0
a) tgx = 1
x1 = π/4 + πn, n∈Z
b) tgx = 5
x2 = arctg(5) + πk, k∈z
6) tg^2x - 2tgx - 3 = 0
a) tgx = - 1
x1 = - π/4 + πn, n∈Z
b) tgx = 3
x2 = arctg(3) + πk, k∈z