Trigonometry
Determine the exact value of the given inverse trigonometric function without using a calculator.
y=sin−1(22)y=\sin^{-1}\left(\frac{\sqrt2}{2}\right)y=sin−1(22)
y=π2y=\frac{\pi}{2}y=2π
y=π3y=\frac{\pi}{3}y=3π
y=0y=0y=0
y=π4y=\frac{\pi}{4}y=4π