Editor
Editor
 Sep 18, 2022
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The exact value of $\cos^{-1}(0)$ is
Difficulty: Easy
A: 
$\frac{\pi}{2}$
B: 
$\frac{-\pi}{2}$
C: 
$3\pi$
D: 
$\pi-\frac{\pi}{6}$
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NETNUST Entry TestMathematicsInverse Trigonometric Functions