$\int {\frac{1}{{{x^2} - 1}}} \,\ln \left( {\frac{{x - 1}}{{x + 1}}} \right)dx$ का मान ज्ञात कीजिए :

  • A
    $\frac{1}{2} \ln^2 \left( \frac{{x - 1}}{{x + 1}} \right) + C$
  • B
    $\frac{1}{4} \ln^2 \left( \frac{{x - 1}}{{x + 1}} \right) + C$
  • C
    $\frac{1}{4} \ln^2 \left( \frac{{x + 1}}{{x - 1}} \right) + C$
  • D
    $(B)$ और $(C)$ दोनों

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