Reciprocal of arithmetic progression
Channel: fun math
Date: 10/08/2017

In this video you'll learn about proofs of sum of n terms and sum of infinite terms in an GP and about Harmonic Mean.
In this channel you'll learn mathematics in a easy logical way. If you don't like the channel comment down below why you don't.  If you like the channel subscribe and comment down below why you like. 
I will release videos like this.