Answer
$0.96012698$
Work Step by Step
$y=$arcsin $0.81926439=\sin^{-1} 0.81926439$
Ensuring that the calculator is in radians, we type $\sin^{-1} 0.81926439$ into the calculator and solve:
$\sin^{-1} 0.81926439\approx0.96012698$
Therefore, $y=$arcsin $0.81926439\approx0.96012698$.