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Prove that cot A + cot B + cot C = (a^(2...

Prove that `cot A + cot B + cot C = (a^(2)+b^(2)+c^(2))/(4/_\)`.

Text Solution

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The correct Answer is:
`(a^2 + b^2 + c^2)/( 4 Delta ) = R.H.S.`
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