\[\int_{{}}^{{}}{\frac{x-\sin x}{1-\cos x}dx=}\] [AISSE 1989]

\[\int_{{}}^{{}}{\frac{x-\sin x}{1-\cos x}dx=}\] [AISSE 1

1.	\[\int_{{}}^{{}}{\frac{x-\sin x}{1-\cos x}dx=}\] [AISSE 1989]
A.	\[x\cot \frac{x}{2}+c\]
B.	\[-x\cot \frac{x}{2}+c\]
C.	\[\cot \frac{x}{2}+c\]
D.	None of these
Answer» C. \[\cot \frac{x}{2}+c\]

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\[\int_{{}}^{{}}{\frac{x-\sin x}{1-\cos x}dx=}\] [AISSE 1989]

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