Question

arcos 0,5+ arcsin (-1)​

Answer 1

Объяснение:

$arccos(0.5) + arcsin( - 1) \\ arccos( \frac{1}{2} ) - ( \frac{\pi}{2} ) \\ \frac{\pi}{3} - \frac{\pi}{2} \\ - \frac{\pi}{6}$