1.

\[\int_{\,0}^{\,\infty }{\,\log \left( x+\frac{1}{x} \right)\frac{dx}{1+{{x}^{2}}}}\] is equal to [RPET 2000, 02]

A. \[\pi \log 2\]
B. \[-\pi \log 2\]
C. \[(\pi /2)\log 2\]
D. \[-(\pi /2)\log 2\]
Answer» B. \[-\pi \log 2\]


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