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Question 1
The value of $\int \frac{(x+1)}{x(xe^{x}+1)} dx$ is equal to
A.
$$log(\frac{1+xe^{x}}{xe^{x}})+C$$
B.
$$log[xe^{x}(1+xe^{x})]+C$$
C.
$$log(\frac{1}{1+xe^{x}})+C$$
D.
$$log(\frac{xe^{x}}{1+xe^{x}})+C$$
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