`AB=6.4cm`. It is divided internally and externally at the points `P` and `Q` respectively in the
Channel: Doubtnut
Date: 2020-05-09

`AB=6.4cm`. It is divided internally and externally at the points `P` and `Q` respectively in the ratio `5:3` . Prove that `(2)/(AB)=(1)/(AP)+(1)/(AQ)`.