જો $\int_0^b \frac{dx}{1+x^2} = \int_b^{\infty} \frac{dx}{1+x^2}$ હોય,તો $b$ ની કિંમત શોધો.

  • A
    $1/3$
  • B
    $\frac{\sqrt{3}}{2}$
  • C
    $\sqrt{2}$
  • D
    $1$

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