Помогите решить тригометрические уравнения очеень даже прошу))
1.sinx=1/2
2.cosx=-1/2
3.tgx=-корень 3
4.ctgx= корень 3

Найдите 8 слов:

         re          con        va

         si           uni         gn

         ser         tive        on

         cial         bea        fi

         con         nal         tuct

         spe         uty          re

         la            tion         ships

Составьте предложения в инфинитивной форме (infinitive):

1. My cousin has a very easy poem that he must learn by heart.

2. His sister has a true friend whom she can tell her secrets.

3. We had advice that we wanted to give you.