Question

PLEASE HELP!!!!!
Prove that the limit as n approaches infinity of r^n =0 when abs(r)<1
Using that a sequence {an} has the limit L and we write
lim as n ->infinity of a_n=L or a_n->L as n->infinity
if for every epsilon >0 there is a corresponding integer N such that
if n>N then abs(a_n-L) 13 years ago