MCQ
$\int \frac{e^x-e^{-x}}{e^x+e^{-x}} d x=$
  • A
    $\log \left|e^x-e^{-x}\right|+C$
  • B
    $\log \cos x+C$
  • C
    $\log \sin x+C$
  • $\log \left|e^x+e^{-x}\right|+C$

Answer

Correct option: D.
$\log \left|e^x+e^{-x}\right|+C$
D

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