निश्चित समाकलन $\int_{0}^{1} \frac{x}{x^{2}+1} d x$ का मान ज्ञात कीजिए।

  • A
    $\frac{1}{2} \log 2$
  • B
    $\log 2$
  • C
    $\frac{1}{2} \log 1$
  • D
    $\log 1$

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