$f(x) = x \cdot 2^{\ln(x^2 + 1)}$ का $x$ के सापेक्ष समाकलन (primitive) ज्ञात कीजिए।

  • A
    $\frac{2^{\ln(x^2 + 1)}}{2(x^2 + 1)} + C$
  • B
    $\frac{(x^2 + 1)2^{\ln(x^2 + 1)}}{\ln 2 + 1} + C$
  • C
    $\frac{(x^2 + 1)^{\ln 2 + 1}}{2(\ln 2 + 1)} + C$
  • D
    $\frac{(x^2 + 1)^{\ln 2}}{2(\ln 2 + 1)} + C$

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