1/2 arccos(-√3/2)-4 arcsin(-√2/2)

Question

1/2 arccos(-√3/2)-4 arcsin(-√2/2)

Answer 1

Решение
(1/2)arccos(-√3/2) - 4arcsin(-√2/2) = (1/2)/(5π/6) - 4*(- π/4) = 
= 5π/12 + π = 17π/12