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 - Page 110: 6

Answer

$14$

Work Step by Step

$\left| \begin{array}{cc} 2 & -2 \\ 4 & 3 \end{array} \right|=ad-bc=2\times 3-(-2)\times 4=6-(-8)=14$
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