વિધેય $\frac{2x}{1 + x^2}$ નું સંકલન કરો.

  • A
    $\log |1 + x^2| + C$
  • B
    $\log |1 - x^2| + C$
  • C
    $\frac{1}{2} \log |1 + x^2| + C$
  • D
    $\log |x^2| + C$

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જો $\int \frac{x^2}{\sqrt{1-x}} \,d x = p \sqrt{1-x} (3x^2 + 4x + 8) + c$ હોય, જ્યાં $c$ એ સંકલનનો અચળાંક છે, તો $p$ ની કિંમત શોધો.

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