Limit Comparison Test (a). Suppose that E ak and Ebk are series with positive terms. If ak lim = c, 0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 50E
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Limit Comparison Test (a). Suppose that Eak and Ebk are series with positive
terms. If
lim
= c,
0 <c<∞,
k→∞ bk
then either both series converge or both diverge.
In other words, E=1 bk converges if and only if E=1 ak converges. Using this inter-
pretation, give an alternative proof via Cauchy sequences.
Transcribed Image Text:Limit Comparison Test (a). Suppose that Eak and Ebk are series with positive terms. If lim = c, 0 <c<∞, k→∞ bk then either both series converge or both diverge. In other words, E=1 bk converges if and only if E=1 ak converges. Using this inter- pretation, give an alternative proof via Cauchy sequences.
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