Answer
(a) The number of columns in A must equal the number of rows in B
Work Step by Step
A 3x4 matrix can be multiplied with a 4x3 matrix, but not with, say, another 3x4 matrix.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 11 - Systems of Equations and Inequalities - 11.4 Matrix Algebra - 11.4 Assess Your Understanding - Page 757: 7
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