$\int \sqrt{1+x^{2}} \, dx$ का मान क्या है?

  • A
    $\frac{x^{3}}{2} \sqrt{1+x^{2}}+\frac{1}{2} x^{2} \log |x+\sqrt{1+x^{2}}|+C$
  • B
    $\frac{2}{3} x\left(1+x^{2}\right)^{\frac{2}{3}}+C$
  • C
    $\frac{2}{3}\left(1+x^{2}\right)^{\frac{2}{3}}+C$
  • D
    $\frac{x}{2} \sqrt{1+x^{2}}+\frac{1}{2} \log |x+\sqrt{1+x^{2}}|+C$

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