If $I_n = \int (\log x)^n \, dx$,then $I_n + n I_{n-1} =$

  • A
    $x(\log x)^n$
  • B
    $x(\log x)^{n-1}$
  • C
    $n(\log x)^n$
  • D
    $(\log x)^n$

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