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If any triangleABC, the value of a(b^(2)...

If any `triangleABC`, the value of `a(b^(2)+c^(2))cos A+b(c^(2)+a^(2))cos B+c(a^(2)+b^(2))cos C=`

A

`3abc^(2)`

B

`3a^(2)bc`

C

3abc

D

`3ab^(2)C`

Text Solution

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The correct Answer is:
C
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