$\int_{-1}^1 \frac{\log (1+x)}{1+x^2} d x = \int_0^1 \frac{\log (1+x)}{1+x^2} d x + \int_0^1 f(x) d x$ હોય, તો $f(x) =$

  • A
    $\frac{\log (1+x)}{1+x^2}$
  • B
    $-\frac{\log (1+x)}{1+x^2}$
  • C
    $\frac{\log (1-x)}{1+x^2}$
  • D
    $0$

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