Let {B,} C R be a sequence and x E [0,1]. Prove that if |B,,41 – B„|< x|B, – Bn-1|Vn> 1 'n+: then {B,} is Cauchy and hence convergent.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 72E
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Let {B,} C Rbe a sequence and x E [0,1].
Prove that if |B,,+1– Bn|< x|Bn – Bn-1| Vn > 1
then {B,} is Cauchy and hence convergent.
Transcribed Image Text:Let {B,} C Rbe a sequence and x E [0,1]. Prove that if |B,,+1– Bn|< x|Bn – Bn-1| Vn > 1 then {B,} is Cauchy and hence convergent.
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