\[\int_{{}}^{{}}{\frac{x\ dx}{1-x\cot x}}=\]

1.	\[\int_{{}}^{{}}{\frac{x\ dx}{1-x\cot x}}=\]
A.	\[\log (\cos x-x\sin x)+c\]
B.	\[\log (x\sin x-\cos x)+c\]
C.	\[\log (\sin x-x\cos x)+c\]
D.	None of these
Answer» D. None of these

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\[\int_{{}}^{{}}{\frac{x\ dx}{1-x\cot x}}=\]

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