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" 24."cot B cot C+cot C cot A+cot A cot ...

" 24."cot B cot C+cot C cot A+cot A cot B=1

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If A + B + C =180^@ , prove that : cot B cot C + cot C cot A + cot A cot B = 1 .

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cot A+cot B+cot C

If A +B +C = 90 ^@ then ( cot A+ cot B + cot C) /(cot A cot B cot C ) =

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If A + B + C = pi , show that cot A cot B + cot B cot C + cot C cot A = 1

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If A+B+C=180^(@) then the value of (cot B+cot C)(cot C+cot A)(cot A+cot B) will be