$\frac{d}{d x}\left(\log \left(\frac{1}{x}\right)+\log \left(\frac{1}{x^2}\right)+\log\left(\frac{1}{x^3}\right)\right) = \text{ . . . . . . }$,$x > 1$

  • A
    $-\frac{6}{x}$
  • B
    $\frac{6}{x}$
  • C
    $6 x$
  • D
    $-6 x$

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