\[1)\sin 1\ и\ \cos 2\]
\[0 < 1 < \frac{\pi}{2},\ \ \ \sin 1 > 0;\]
\[\frac{\pi}{2} < 2 < \pi,\ \ \ \cos 2 < 0;\]
\[\sin 1 > \cos 2.\]
\[2)\sin( - 1)\ и\ \cos 1\]
\[- \frac{\pi}{2} < - 1 < 0,\ \ \ \sin( - 1) < 0;\]
\[0 < \frac{\pi}{2} < 1,\ \ \ \cos 1 > 0;\]
\[\sin( - 1) < \cos 1.\]
\[3)\sin{3,5}\ и\ \ tg\ 3,5\]
\[\pi < 3,5 < \frac{3\pi}{2};\]
\[\sin{3,5} < 0;\]
\[tg\ 3,5 > 0;\]
\[\sin{3,5} < tg\ 3,5.\]
\[4)\cos 3\ и\ \ tg\ 4\]
\[\frac{\pi}{2} < 3 < \pi,\ \ \ \cos 3 < 0;\]
\[\pi < 4 < \frac{3\pi}{2},\ \ \ tg\ 4 > 0;\]
\[\cos 3 < tg\ 4.\]