$\int \frac{d x}{(x+1) \sqrt{x^2+4}} = $

  • A
    $-\frac{1}{\sqrt{5}} \sinh ^{-1}\left(\frac{4-x}{2(x+1)}\right)+c$
  • B
    $\frac{1}{\sqrt{5}} \sinh ^{-1}\left(\frac{4-x}{2(x+1)}\right)+c$
  • C
    $\log \left|\frac{x+2}{x+1}\right|+c$
  • D
    $\frac{1}{2} \sqrt{\frac{x+1}{x+2}}+c$

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