\[\boxed{\mathbf{651}\mathbf{.}}\]
\[1)\sin x \geq - \sqrt{2}\]
\[- 1 \leq \sin x \leq 1\]
\[- \sqrt{2} < - 1.\]
\[Ответ:\ \ при\ любом\ \text{x.}\]
\[2)\sin x > 1\]
\[- 1 \leq \sin x \leq 1.\]
\[Ответ:\ \ решений\ нет.\]
\[3)\sin x \leq - 1\]
\[- 1 \leq \sin x \leq 1\]
\[\sin x = - 1\]
\[x = - \arcsin 1 + 2\pi n\]
\[x = - \frac{\pi}{2} + 2\pi n.\]
\[Ответ:\ - \frac{\pi}{2} + 2\pi n.\]
\[4)\sin x \geq 1\]
\[- 1 \leq \sin x \leq 1\]
\[\sin x = 1\]
\[x = \arcsin 1 + 2\pi n\]
\[x = \frac{\pi}{2} + 2\pi n.\]
\[Ответ:\ \ \frac{\pi}{2} + 2\pi n.\]