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 Sep 18, 2022
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What is the value of $\cos^{-1}(\frac{1}{\sqrt{2}})$=
Difficulty: Easy
A: 
$\frac{\pi}{3}$
B: 
$\frac{\pi}{4}$
C: 
$\frac{2\pi}{3}$
D: 
$\frac{3\pi}{2}$
NETNUST Entry TestMathematicsInverse Trigonometric Functions