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In triangleABC, (cosA)/(c cosB+bcosC)+(c...

In `triangleABC, (cosA)/(c cosB+bcosC)+(cosB)/(acosC+ccosA)+(cosC)/(acosB+bcosA)=`

A

`(a^(2)+b^(2)-c^(2))/(4)`

B

`(a^(2)+b^(2)-c^(2))/(2)`

C

`(a^(2)+b^(2)+c^(2))/(4abc)`

D

`(a^(2)+b^(2)+c^(2))/(2abc)`

Text Solution

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The correct Answer is:
D
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