$\int_{-1}^1 \frac{\sqrt{1+x+x^2}-\sqrt{1-x+x^2}}{\sqrt{1+x+x^2}+\sqrt{1-x+x^2}} dx$ का मान ज्ञात कीजिए।

  • A
    $\frac{3\pi}{2}$
  • B
    $\frac{\pi}{2}$
  • C
    $0$
  • D
    $-1$

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