જો $A=\int_0^{\infty} \frac{1+x^2}{1+x^4} d x$ અને $B=\int_0^1 \frac{1+x^2}{1+x^4} d x$ હોય,તો

  • A
    $2A=B$
  • B
    $A=B$
  • C
    $2B=A$
  • D
    $2B+A=0$

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