Q.
A. a cosA + b cosB + c cosC = R sinAsinBsinC
B. 2a cosA + b cosB + c cosC = R sinAsinBsinC
C. 4a cosA + b cosB + c cosC = R sinAsinBsinC
D. 8a cosA + b cosB + c cosC = R sinAsinBsinC
E. None of the above
Correct choice: C
Explanation: