1 e^x+1 d x= ___________ +C. - Vidyadip

MCQ

$\int \frac{1}{e^x+1} d x=$ ___________ $+C$.

✓
$\log \left|\frac{e^x}{e^x+1}\right|$
B
$\log \left|\frac{e^x+1}{e^x}\right|$
C
$\log \left|\frac{1}{e^x+1}\right|$
D
$\log \left|\frac{e^x-1}{e^x+1}\right|$

✓

Answer

Correct option: A.

$\log \left|\frac{e^x}{e^x+1}\right|$

A

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