Precalculus
Improve your experience by picking them
Evaluate the expression.
sin−1(22)\sin^{-1}\left(\frac{\sqrt2}{2}\right)sin−1(22)
π4\frac{\pi}{4}4π
−π4-\frac{\pi}{4}−4π
3π4\frac{3\pi}{4}43π
7π4\frac{7\pi}{4}47π