If 0<r<1 and |x(n+1) - x(n)| < r ^n for all n. Show that x(n) is Cauchy sequence. help please.
Oct 26, 2011 #1 raw99 1 0 If 0<r<1 and |x(n+1) - x(n)| < r ^n for all n. Show that x(n) is Cauchy sequence. help please.
Oct 27, 2011 #2 dextercioby Science Advisor Homework Helper Insights Author 13,264 1,547 You may have at least written & used the definition of a Cauchy sequence...