\[\int_{0}^{\pi /2}{x\cot x\,dx}\] equals [RPET 1997]

\[\int_{0}^{\pi /2}{x\cot x\,dx}\] equals

1.	\[\int_{0}^{\pi /2}{x\cot x\,dx}\] equals [RPET 1997]
A.	\[-\frac{\pi }{2}\log 2\]
B.	\[\frac{\pi }{2}\log 2\]
C.	\[\pi \log 2\]
D.	\[-\pi \log 2\]
Answer» C. \[\pi \log 2\]

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\[\int_{0}^{\pi /2}{x\cot x\,dx}\] equals [RPET 1997]

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