4. If (x) is a sequence in an inner product space X such that the series converges, show that (sn) is a Cauchy sequence, where ||x₁||+||x₂||+ Sn = X₁ +.. • + xn.
4. If (x) is a sequence in an inner product space X such that the series converges, show that (sn) is a Cauchy sequence, where ||x₁||+||x₂||+ Sn = X₁ +.. • + xn.
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 34E
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