Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 10 - 10.3 - The Inverse of a Square Matrix - 10.3 Exercises - Page 734: 4



Work Step by Step

Matrix equation : AX=B (multiply $A^{-1}$ on both sides) $A^{-1}$AX=$A^{-1}$B and since $A^{-1}$A=I Hence, $X=A^{-1}B$
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