Question:
Mark $(\sqrt{)}$ against the correct answer in the following:
$\int_{0}^{1} \frac{(1-x)}{(1+x)} d x=?$
A. $\frac{1}{2} \log 2$
B. $(2 \log 2+1)$
C. $(2 \log 2-1)$
D. $\left(\frac{1}{2} \log 2-1\right)$
Solution:
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