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PROVE THAT - tan A+B/2=cot C/2

PROVE THAT -     tan A+B/2=cot C/2

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1 Answers

ruchi yadav
askIITians Faculty 27 Points
8 years ago
A +B +C =180

tan(A+B/2) = tan (180-C/2) = tan(90-<C/2>)
which is equal to cot C/2

Thank You
Ruchi
Askiitians Faculty

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