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$cschx$=
E
Editor
Sep 18, 2022
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$cschx$=
Difficulty: Easy
A:
$\frac{2}{e^{x}-e^{-x}}$
B:
$\frac{1}{2}{e^{x}-e^{-x}}$
C:
$\frac{e^{x}-e^{-x}}}{e^{x}-e^{-x}}$
D:
$\frac{1}{2}ln(\frac{x+1}{x-1})$
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ID: 63273db8ca83163ac3a105db