E
Editor
Sep 18, 2022
The value of $\cos^{-1}\frac{1}{2}+2\sin^{-1}\frac{1}{2}$=
Difficulty: Easy
A:
$\frac{2\pi}{3}$
B:
$\frac{\pi}{3}$
C:
$\frac{\pi}{4}$
D:
$\frac{\pi}{2}$
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ID: 63273db9ca83163ac3a11553