What is \[\int\limits_{0}^{\pi /2}{\sin \,\,2x\,\,\ell n\,(\cot \,\,x)dx}\] equal to?

What is \[\int\limits_{0}^{\pi /2}{\sin \,\,2x\,\,\ell n\,(\cot \,\,x)

1.	What is \[\int\limits_{0}^{\pi /2}{\sin \,\,2x\,\,\ell n\,(\cot \,\,x)dx}\] equal to?
A.	0
B.	\[\pi \ell n2\]
C.	\[-\pi \ell n2\]
D.	\[\frac{\pi \ell n2}{2}\]
Answer» B. \[\pi \ell n2\]

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What is \[\int\limits_{0}^{\pi /2}{\sin \,\,2x\,\,\ell n\,(\cot \,\,x)dx}\] equal to?

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