Answer
See below
Work Step by Step
We are given: $\begin{bmatrix}
2 & 0 & 5\\
0 & -1 & 1\\
3 & -4 & 2
\end{bmatrix}$
then $sum A=2+(-1)+2=3$
Product of the given matrix is: $\det (A)=
2(-2+4)+5(3)+0\\
=19$
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: 34
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