If \[(1+\sin A)(1+\sin B)(1+\sin C)\]\[=(1-\sin A)(1-\sin B)(1-\sin C),\]then each side is equal to

If \[(1+\sin A)(1+\sin B)(1+\sin C)\]\[=(1-\sin A)(1-\sin B)(1-\sin C)

1.	If \[(1+\sin A)(1+\sin B)(1+\sin C)\]\[=(1-\sin A)(1-\sin B)(1-\sin C),\]then each side is equal to
A.	\[\pm \sin A\sin B\sin C\]
B.	\[\pm \cos A\cos B\cos C\]
C.	\[\pm \sin A\cos B\cos C\]
D.	\[\pm \cos A\sin B\sin C\]
Answer» C. \[\pm \sin A\cos B\cos C\]

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If \[(1+\sin A)(1+\sin B)(1+\sin C)\]\[=(1-\sin A)(1-\sin B)(1-\sin C),\]then each side is equal to

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