\( \int \frac{x e^{x}}{(1+x)^{2}} d x \) is equal to
(A) \( \frac{e^{x}}{x+1}+C \)
(B) \( e^{x}(...
\( \int \frac{x e^{x}}{(1+x)^{2}} d x \) is equal to
(A) \( \frac{e^{x}}{x+1}+C \)
(B) \( e^{x}(x+1)+C \)
(C) \( -\frac{e^{x}}{(x+1)^{2}}+C \)
(D) \( \frac{e^{x}}{1+x^{2}}+C \)
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