# How do you simplify the expression arcsin(sin ((5pi)/6))?

$\frac{5 \pi}{6}$
let $y = \arcsin \left(\sin \left(\frac{5 \pi}{6}\right)\right)$
Then $\sin y = \sin \left(\frac{5 \pi}{6}\right)$
so $y = \frac{5 \pi}{6} + 2 \pi n$