Without multiplying matrices, find bases for the row and column spaces of A: 1 2' A=45 30 3 1 1 2 2 7 How do you know from these shapes that A cannot be invertible?

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.3: Matrix Algebra
Problem 80E
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Without multiplying matrices, find bases for the row and column spaces of A:
1 2'
A=45
30 3
1 1 2
2 7
How do you know from these shapes that A cannot be invertible?
Transcribed Image Text:Without multiplying matrices, find bases for the row and column spaces of A: 1 2' A=45 30 3 1 1 2 2 7 How do you know from these shapes that A cannot be invertible?
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