$\int \sqrt{x^2+x+1} \, dx \times \int \frac{1}{\sqrt{x^2+x+1}} \, dx$ का मान ज्ञात कीजिए।

  • A
    $x + C$
  • B
    $\left(\frac{2x+1}{4} \sqrt{x^2+x+1} + \frac{3}{8} \sinh^{-1} \frac{2x+1}{\sqrt{3}}\right) \sinh^{-1}\left(\frac{2x+1}{\sqrt{3}}\right) + C$
  • C
    $\frac{2x+1}{2} \sinh^{-1}\left(\sqrt{x^2+x+1}\right) + \left(\frac{3}{8} \sinh^{-1} \frac{2x+1}{\sqrt{3}}\right)^2 + C$
  • D
    $\frac{2x+1}{2} \left(\sinh^{-1} \frac{2x+1}{\sqrt{3}}\right)^2 + C$

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