\[\int_{\,0}^{\,2\pi }{|\sin x|\,dx=}\]

1.	\[\int_{\,0}^{\,2\pi }{\|\sin x\|\,dx=}\]
A.	0
B.	1
C.	2
D.	4
Answer» E.

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\[\int_{\,0}^{\,2\pi }{|\sin x|\,dx=}\]

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