(b) Let a, be a sequence of complex numbers such that E lanl < 00. Suppose that Ea,k" = 0 for k = 1,2, .... n=0 Prove that a, = 0 for all n.
(b) Let a, be a sequence of complex numbers such that E lanl < 00. Suppose that Ea,k" = 0 for k = 1,2, .... n=0 Prove that a, = 0 for all n.
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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