Which is true in the following [UPSEAT 1999] – McqOptions

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1.	Which is true in the following [UPSEAT 1999]
A.	\[a\cos A+b\cos B+c\cos C=R\sin A\sin B\sin C\]
B.	\[a\cos A+b\cos B+c\cos C=2R\sin A\sin B\sin C\]
C.	\[a\cos A+b\cos B+c\cos C=4R\sin A\sin B\sin C\]
D.	\[a\cos A+b\cos B+c\cos C=8R\sin A\sin B\sin C\]
Answer» D. \[a\cos A+b\cos B+c\cos C=8R\sin A\sin B\sin C\]

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