Editor
Editor
 Sep 18, 2022
0
If $\pi \leq x\leq 2\pi$, then $\cos^{-1}(\cos x)$=
Difficulty: Easy
A: 
cos x
B: 
x
C: 
1/x
D: 
-x
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NETNUST Entry TestMathematicsInverse Trigonometric Functions