2) let B be an extension of a Banach algebra A with unit. Then [nr (B) please prove it. (3) Inv(A)

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter3: Matrices
Section3.2: Matrix Algebra
Problem 21EQ: Prove the half of Theorem 3.3 (e) that was not proved in the text.
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2) bet
B be an
extension of Banach algebra
A with unit. Then
please prove it. (3)
a
Inv(A) = [nr (B)
Transcribed Image Text:2) bet B be an extension of Banach algebra A with unit. Then please prove it. (3) a Inv(A) = [nr (B)
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