In any `triangle ABC` , if `a^2,b^2,c^2` are in AP then that cot A , cot B , cot C are in are in A.P
Channel: Doubtnut
Date: 2020-03-29

In any `triangle ABC` , if `a^2,b^2,c^2` are in AP then that cot A , cot B , cot C are in are in A.P.