MCQ
$\int \frac{d x}{x^2-1}=$
  • A
    $\sin ^{-1} x+k$
  • $\frac{1}{2} \log \left|\frac{x-1}{x+1}\right|+k$
  • C
    $\frac{1}{2} \log \left|\frac{x+1}{x-1}\right|+k$
  • D
    $\sqrt{1-x^2}+k$

Answer

Correct option: B.
$\frac{1}{2} \log \left|\frac{x-1}{x+1}\right|+k$
B

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