$\int_{0}^{\infty} \frac{x}{(1+x)(x^{2}+1)} dx$ का मान क्या है?

  • A
    $2 \pi$
  • B
    $\frac{\pi}{4}$
  • C
    $\frac{\pi}{16}$
  • D
    $\frac{\pi}{32}$

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