§ 29: 29.2

29.2 Розв’яжіть рівняння:

1) tgx = 1; x = arctg1 + πn, n ∈ Z; x = π4 + πn, n ∈ Z;

2) tgx = 33; x = arctg33 + πn, n ∈ Z; x = –π6 + πn, n ∈ Z;

3) tgx = –3; x = arctg(–3) + πn, n ∈ Z; x = –π3 + πn, n ∈ Z;

4) ctgx = 3; tgx = 33; x = arctg33 + πn, n ∈ Z; x = π6 + πn, n ∈ Z;

5) ctgx = –33; tgx = –3; x = arctg(–3) + πn, n ∈ Z; x = –π3 + πn, n ∈ Z;

6) tgx = 0; x = πn, n ∈ Z.