If `cot A/2:cot"" B/2: cot"" C/2 = 3:5:7` then show that `a:b:c = 6:5:4`. |Class 12 MATH | Doubtnut

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If A+B+C=π, Prove: cotA/2 + cotB/2 + cotC/2 = cotA/2.cotB/2.cotC/2 | JEE,11th,12th,CBSE,ICSEIf A+B+C=π, Prove: cotA/2 + cotB/2 + cotC/2 = cotA/2.cotB/2.cotC/2 | JEE,11th,12th,CBSE,ICSE
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