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Editor
 Sep 18, 2022
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$\cos^{-1}\frac{12}{13}$=
Difficulty: Easy
A: 
$\tan^{-1}\frac{3}{5}$
B: 
$\cot^{-1}\frac{13}{12}$
C: 
$\sec^{-1}\frac{13}{12}$
D: 
$\sin^{-1}\frac{5}{13}$
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NETNUST Entry TestMathematicsInverse Trigonometric Functions