In Exercise 81, AB = A and BA = A. For this pair of matrices, B acts

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In Exercise 81, AB = A and BA = A. For this pair of matrices, B acts the same way for matrix multiplication as the number acts for multiplication of real numbers.


Exercise 81

-1 |A = 1, B = | 0 1 -1

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College Algebra

ISBN: 978-0134697024

12th edition

Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

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