समाकलन $\int_0^1 \cot^{-1}(1 + x + x^2) dx$ का मान ज्ञात कीजिए:

  • A
    $2 \tan^{-1} 2 + \frac{1}{2} \log_e \left(\frac{5}{4}\right) + \frac{\pi}{2}$
  • B
    $2 \tan^{-1} 2 + \frac{1}{2} \log_e \left(\frac{5}{4}\right) - \frac{\pi}{2}$
  • C
    $2 \tan^{-1} 2 - \frac{1}{2} \log_e \left(\frac{5}{4}\right) + \frac{\pi}{2}$
  • D
    $2 \tan^{-1} 2 - \frac{1}{2} \log_e \left(\frac{5}{4}\right) - \frac{\pi}{2}$

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