2" + 3" (a) Show that the series converges. 4" + 5" k2 k=1 n=1

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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2.
2" + 3"
(a) Show that the series
Σ
converges.
4" + 5n
1-2
k=1
n=1
Xn
(b) Let a, b ER with 0 < a < b and let (xn) be a sequence of real numbers such that
a"
n=1
Xn
converges.
bn
n=1
converges. Prove that
Transcribed Image Text:2. 2" + 3" (a) Show that the series Σ converges. 4" + 5n 1-2 k=1 n=1 Xn (b) Let a, b ER with 0 < a < b and let (xn) be a sequence of real numbers such that a" n=1 Xn converges. bn n=1 converges. Prove that
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