જ્યારે $x > 0$ હોય,ત્યારે $\int \cos^{-1}\left(\frac{1-x^{2}}{1+x^{2}}\right) dx$ શું થાય?

  • A
    $2[x \tan^{-1} x - \frac{1}{2} \log(1+x^{2})] + C$
  • B
    $2[x \tan^{-1} x + \frac{1}{2} \log(1+x^{2})] + C$
  • C
    $2x \tan^{-1} x + \log(1+x^{2}) + C$
  • D
    $2x \tan^{-1} x - \log(1+x^{2}) + C$

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$\int e^{\sqrt{x}} \, dx$ ની કિંમત શોધો ($A$ એ સ્વૈચ્છિક અચળાંક છે).

$\int (\log x)^2 \, dx = $

$\int \sin(\log x) \, dx = $

$\int \frac{x \tan^{-1} x}{(1 + x^2)^{3/2}} \, dx = $

$\int \cos (\log x) d x=$

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