Prove this identity between two infinite sums (with r ER and n! stands for factorial): (E) - (2.r)" 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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Prove this identity between two infinite sums (with x ∈ R and n! stands for factorial):

Prove this identity between two infinite sums (with r ER and n! stands for factorial):
(E)-
2
(2.r)"
n!
nD0
n=0
Transcribed Image Text:Prove this identity between two infinite sums (with r ER and n! stands for factorial): (E)- 2 (2.r)" n! nD0 n=0
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