Answer
$W=e^x.
$
Work Step by Step
$W=\left| \begin {array}{ccc} 1&x&{{\rm e}^{x}}\\ 0&1&
{{\rm e}^{x}}\\ 0&0&{{\rm e}^{x}}\end {array}
\right|=e^x.
$
Elementary Linear Algebra 7th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
1-13311-087-8
ISBN 13:
978-1-13311-087-3
Chapter 4 - Vector Spaces - Review Exercises - Page 223: 91
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