E
Editor
Sep 18, 2022
The principal value of $\sin^{-1}(-\frac{1}{2})$
Difficulty: Easy
A:
$\frac{\pi}{3}$
B:
$\frac{\pi}{4}$
C:
$\frac{\pi}{6}$
D:
$-\frac{\pi}{6}$
ID: 63273db9ca83163ac3a11403