I have corrected the number. Sorry about my funny fingers.
An ant starts walking from the origin point. What is the final coordinate of the ant walking east 1", north 1/2", west 1/4", south 1/8", east 1/16", and so on.
S = a(r^0) + a(r^1) + a(r^2) + ... + a(r^n)
= a(1 - r^(n+1)) / (1 - r)
There isn't a final coordinate. Shouldn't it be infinite?
and I fail to see the point for the Geometric progression formula.
its geometric progression with infinite sum, the formula should be
Sn= a / 1-r where a = first element and r = common ratio.
what am I missing?