Arcsin 1/2×arccos √3/2=

Question

Arcsin 1/2×arccos √3/2=

Answer 1

Arcsin1/2=П/6=30
arccos√3/2=П/3=60
arcsin1/2*arccos√3/2=П*П/6*3=П^2/18=10*П=30*60=1800