Elementary Linear Algebra 7th Edition

Published by Cengage Learning
ISBN 10: 1-13311-087-8
ISBN 13: 978-1-13311-087-3

Chapter 2 - Matrices - 2.1 Operations with Matrices - 2.1 Exercises: 66

Answer

$0$

Work Step by Step

$A=\left[ \begin{matrix} 1 & 4 & 3 & 2 \\ 4 & 0 & 6 & 1 \\ 3 & 6 & 2 & 1 \\ 2 & 1 & 1 & -3 \\ \end{matrix} \right] $ To find the trace of a matrix calculate the sum of the main diagonal entries. $Tr(A)=1+0+2+(-3)=0$
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