Math, asked by onmyway17, 6 days ago

Prove in any triangle ABC:
$\mathtt\red{(b-c)cot\frac{A}{2}+(c-a)cot \frac{B}{2}+(a-b)cot \frac{C}{2}=0}$
plz answer this correctly

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Answered by diptidas7621

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it is the answer answer this correctly

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