Реши уравнения

1. \(\ctg x (1 + \cos x) = \sin 2x\) ;

2. \(\tg x (1 - \sin x) = \sin 2x\) .

Ответ:

1. [ ], [ ], [ ], \(n\in \Z\) ;

2. [ ],[ ], [ ], \(n\in \Z\) .