2) A) If x= Sup S, show using the definition of supremum that for each ε>0, there is an element aes such that X-εcaLX. B) Suppose and is a cauchy sequence such that the set S= {anine]) is infinite. Suppose XE IR is an accumulation point of S. Show that the sequence Ean sn= converges to x.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.2: Arithmetic Sequences
Problem 68E
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2) A) If x= Sup S, show using the definition of supremum that for each E>0,
there is an element acs such that X-εcaLX.
=1
B) Suppose and is a couchy sequence such that the set S= {anine]] is
infinite. Suppose XEIR is an accumulation point of S. Show that the sequence
B
Eau 30²1 converges to x.
Transcribed Image Text:2) A) If x= Sup S, show using the definition of supremum that for each E>0, there is an element acs such that X-εcaLX. =1 B) Suppose and is a couchy sequence such that the set S= {anine]] is infinite. Suppose XEIR is an accumulation point of S. Show that the sequence B Eau 30²1 converges to x.
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