Решить тригонометрические неравенства.
1. [tex]sinx\ \textgreater \ \frac{1}{2}[/tex]
2.[tex]cosx\ \textless \ -\frac{\sqrt{2}}{2}[/tex]
3.[tex]\sqrt{2} sin(\frac{\pi}{2} -2x)\ \textgreater \ 1[/tex]
4.[tex]2cos(\frac{3\pi }{2}+3x )\leq -\sqrt{2}[/tex]
1. [tex]sinx\ \textgreater \ \frac{1}{2}[/tex]
2.[tex]cosx\ \textless \ -\frac{\sqrt{2}}{2}[/tex]
3.[tex]\sqrt{2} sin(\frac{\pi}{2} -2x)\ \textgreater \ 1[/tex]
4.[tex]2cos(\frac{3\pi }{2}+3x )\leq -\sqrt{2}[/tex]
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