Arcsin (-√2/2) Arccos √3/2

Question

Arcsin (-√2/2) Arccos √3/2

Answer 1

arcsin x=y ⇔ siny=x

sin (-π/4)=-√2/2

arcsin(-√2/2)=-π/4

cos(π/6)=√3/2

arccos(√3/2)=π/6