Answer
See below
Work Step by Step
We are given: $\begin{bmatrix}
-1 & -2 & 0\\
6 & -3 & -8\\
-2 & 2 & 1
\end{bmatrix}$
then $sum A=-1-3+1=-3$
Product of the given matrix is: $\det (A)=
-1(-3+16)+2(6-16)+0\\
=-33$
Differential Equations and Linear Algebra (4th Edition)
by Goode, Stephen W.; Annin, Scott A.
Published by
Pearson
ISBN 10:
0-32196-467-5
ISBN 13:
978-0-32196-467-0
Chapter 7 - Eigenvalues and Eigenvectors - 7.2 General Results for Eigenvalues and Eigenvectors - Problems - Page 453: 33
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