Решить неравенство:
а) [tex]sint >-\frac{1}{2}[/tex]
б) [tex]cost<\frac{\sqrt{3}}{2}[/tex]
a)-п/6+2Пn<t<7/6П+2Пn
b) П/6+2Пn<t<11/6П+2Пn
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a)-п/6+2Пn<t<7/6П+2Пn
b) П/6+2Пn<t<11/6П+2Пn