Editor
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: 
$\frac{\pi}{2}$
Sponsored Ads