Объяснение:

[tex] \alpha \tan(1) = \frac{\pi}{4} \\ a \tan( - \sqrt{3} ) = - \frac{\pi}{3} \\ a \cot(1) = \frac{\pi}{4} \\ \alpha \ ccos( \frac{ \sqrt{3} }{2} ) = \frac{\pi}{6} \\ arccos( - \frac { \sqrt{2} }{2} ) = \frac{3\pi}{4} [/tex]