Помогите срочно!!!

arcsin √3/2+2 arccos(-√3/2)

arcsin(√3/2) + 2arccos(- √3/2) = pi/3 + 2*(pi - pi/6) = = pi/3 + 2*5pi/6 = pi/3 + 5pi/3 = 6pi/3 = 2pi