Elementary Linear Algebra 7th Edition

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

Chapter 3 - Determinants - 3.1 The Determination of a Matrix - 3.1 Exercises: 5

Answer

$27$

Work Step by Step

$\left| \begin{array}{cc} 5 & 2 \\ -6 & 3 \end{array} \right|=ad-bc=5\times 3-2\times (-6)=15-(-12)=27$
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