$\int \frac{x^{49} \tan ^{-1}\left(x^{50}\right)}{1+x^{100}} d x=k\left(\tan ^{-1}\left(x^{50}\right)\right)^2+c$ હોય,તો $k$ ની કિંમત શોધો.

  • A
    $\frac{1}{50}$
  • B
    $-\frac{1}{50}$
  • C
    $\frac{1}{100}$
  • D
    $-\frac{1}{100}$

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