Помогите решить Тригонометрические уравнения до завтра.
Зtgx -350;
2 cos x + 20;
2 -2 cos x >0;
Зtgx +3<0;
Зtgx + 3 20;
5+2sin x <0;
1- 2sin xs0;
2sin x + 5 20;
2sin x+1=0;
Необязательно на 5+ хотя бы на 4
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