मान लीजिए $f(x) = \int \frac{x^2 dx}{(1 + x^2)(1 + \sqrt{1 + x^2})}$ और $f(0) = 0$ है,तो $f(1)$ का मान ज्ञात कीजिए।

  • A
    $\log(1 + \sqrt{2})$
  • B
    $\log(1 + \sqrt{2}) - \frac{\pi}{4}$
  • C
    $\log(1 + \sqrt{2}) + \frac{\pi}{2}$
  • D
    इनमें से कोई नहीं

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