$\frac{1}{2} \int_2^3 \frac{2 x}{x^2+1} d x=$ . . . . . . .

  • A
    $\frac{1}{2} \log (2)$
  • B
    $\frac{1}{2} \log (2)$
  • C
    $\log \left(\frac{2}{5}\right)$
  • D
    $\frac{1}{2} \log \left(\frac{3}{2}\right)$

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