Answer
$\dfrac{1}{(x+1)^2}$
Work Step by Step
Simplify: $\dfrac{d((\dfrac{-1}{x+1})+C)}{dx}$
Thus, we have
$\dfrac{d((\dfrac{-1}{x+1})+C)}{dx}=(x+1)^{-2}=\dfrac{1}{(x+1)^2}$
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