$x > 0$ માટે $\int \frac{e^{\tan ^{-1}(x)}}{1+x^2} \left[\left(\sec ^{-1} \sqrt{1+x^2}\right)^2+\cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right)\right] d x$ ની કિંમત શોધો.

  • A
    $e^{\tan ^{-1}(x)}(\tan ^{-1} x)^2+c$
  • B
    $e^{\tan ^{-1}(x)}(\tan ^{-1} x)+c$
  • C
    $e^{\tan ^{-1}(x)}(\tan ^{-1} x)^3+c$
  • D
    $-e^{\tan ^{-1}(x)}(\tan ^{-1} x)^2+c$

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