\[\int_{{}}^{{}}{x\cos x\ dx=}\] [MP PET 1988]

1.	\[\int_{{}}^{{}}{x\cos x\ dx=}\] [MP PET 1988]
A.	\[x\sin x+\cos x\]
B.	\[x\sin x-\cos x\]
C.	\[x\cos x+\sin x\]
D.	\[x\cos x-\sin x\]
Answer» B. \[x\sin x-\cos x\]

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\[\int_{{}}^{{}}{x\cos x\ dx=}\] [MP PET 1988]

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