\[\boxed{\mathbf{1222}\mathbf{.}}\]
\[1)\cos x \leq \sqrt{3}\]
\[- 1 \leq \cos x \leq 1\]
\[3 > 1\]
\[\sqrt{3} > 1\]
\[Ответ:\ \ при\ любом\ x.\]
\[2)\cos x < - 2\]
\[- 1 \leq \cos x \leq 1\]
\[Ответ:\ \ решений\ нет.\]
\[3)\cos x \geq 1\]
\[- 1 \leq \cos x \leq 1\]
\[\cos x = 1\]
\[x = \arccos 1 + 2\pi n = 2\pi n\]
\[Ответ:\ \ 2\pi n.\]
\[4)\cos x \leq - 1\]
\[- 1 \leq \cos x \leq 1\]
\[\cos x = - 1\]
\[x = \pi - \arccos 1 + 2\pi n =\]
\[= \pi + 2\pi n\]
\[Ответ:\ \ \pi + 2\pi n.\]