College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 6, Matrices and Determinants - Section 6.3 - Inverses of Matrices and Matrix Equations - 6.3 Exercises - Page 523: 38

Answer

$B^{-1}AB=\left[\begin{array}{c c} 13/7& 4/7& 8/7\\ -8/7& -17/7&-6/7\\ 31/7&9/7&-10/7\end{array} \right]$

Work Step by Step

Using a graphing calculator (see attached picture), we get: $B^{-1}AB=\left[\begin{array}{c c} 13/7& 4/7& 8/7\\ -8/7& -17/7&-6/7\\ 31/7&9/7&-10/7\end{array} \right]$
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