(a) Let {n} be a sequence such that there exist A> 0 and c € (0, 1) for which n+1-In ≤ Ac" for all nEN. Is In a Cauchy sequence? Is this conclusion still valid if we assume lim |Fn+1 − n = 0? 84x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 25E
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(a) Let {rn} be a sequence such that there exist A>0 and c e (0, 1) for which |rn+1 – Xn] < Ac" for all
ne N. Is r, a Cauchy sequence ? Is this conclusion still valid if we assume
lim |rn+1 – xn| = 0?
Transcribed Image Text:(a) Let {rn} be a sequence such that there exist A>0 and c e (0, 1) for which |rn+1 – Xn] < Ac" for all ne N. Is r, a Cauchy sequence ? Is this conclusion still valid if we assume lim |rn+1 – xn| = 0?
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