$\int \frac{x+1}{x^{2}+5 x+6} d x=$

  • A
    $-\log |x+2|+2 \log |x+3|+C$
  • B
    $-\log |x+2|-2 \log |x+3|+C$
  • C
    $2 \log |x+2|-2 \log |x+3|+C$
  • D
    $\log |x+2|+2 \log |x+3|+C$

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