This is better than my answer, at least if you can get your brain to interpret it in base b. In that case the first two lines would become 1/(b-1) = 0.1111.

This is better than my answer, at least if you can get your brain to interpret it in base b. In that case the first two lines would become 1/(b-1) = 0.1111... 1/((b-1)^2) = 1/b * 1/b = 0.111... * 0.111... =