$\int \frac{\log x}{(1+x)^3} d x=$

  • A
    $\frac{1}{2}\left[\frac{1}{1+x}+\frac{\log x}{(1+x)^2}-\log \left(\frac{x}{1+x}\right)\right]+c$
  • B
    $\frac{1}{2}\left[\frac{1}{1+x}-\frac{\log x}{(1+x)^2}-\log \left(\frac{x}{1+x}\right)\right]+c$
  • C
    $\frac{1}{2}\left[\frac{1}{1+x}+\frac{\log x}{(1+x)^2}-\log \left(1+x\right)\right]+c$
  • D
    $\frac{1}{2}\left[\frac{1}{1+x}-\frac{\log x}{(1+x)^2}+\log \left(\frac{x}{1+x}\right)\right]+c$

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