In any `Delta ABC`,    If `cot ""A/2 , cot ""B/2 ,cot ""C/2 ` are in AP, then `a,b,c` are in
Channel: Doubtnut
Date: 2020-05-24

In any `Delta ABC`,    If `cot ""A/2 , cot ""B/2 ,cot ""C/2 ` are in AP, then `a,b,c` are in