Question

вычислить 2arcsin1/2+4arcsin(-√2/2)​

Answer 1

$2arcsin \frac{1}{2} + 4arcsin( - \frac{ \sqrt{2} }{2} ) = \frac{2\pi}{6} + 4( - \frac{\pi}{4} ) = \frac{\pi}{3} - \pi = - \frac{2\pi}{3}$

Ответ: -2π/3