$\int_{0}^{1} \frac{dx}{x + \sqrt{1 - x^2}}$ का मान ज्ञात कीजिए।

  • A
    $\frac{\pi}{3}$
  • B
    $\frac{\pi}{2}$
  • C
    $\frac{1}{2}$
  • D
    $\frac{\pi}{4}$

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