Question

1) sin 3x = (корень 3)/2
2) sin 2x = -1/2
3) cos 3x = - (корень 2)/2
4) tg 3x = -1

Answer 1

1) x=(-1)^kП/9+Пk/3

2) x=(-1)^(k+1)П/12+пk/2

3) x=П/3+-П/12+2Пk/3

4)x=-П/12+Пk/3