$$2^0+2^1+2^2+2^3+\dots+2^n = 2^{(n+1)} - 1$$
I want to know is there a simple (visual/intuitive/elementary) explanation for this. How can I explain the reason behind this result to a layman?
$$2^0+2^1+2^2+2^3+\dots+2^n = 2^{(n+1)} - 1$$
I want to know is there a simple (visual/intuitive/elementary) explanation for this. How can I explain the reason behind this result to a layman?