Answer
Lenth $=5$
Work Step by Step
Length $=\sqrt {4^{2}+3^{2}}$
$=\sqrt {16+9}$
$=\sqrt {25}$
$=5$, since a length must be greater than zero
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 5 - Inner Product Spaces - 5.1 Length and Dot Product in Rn - 5.1 Exercises - Page 235: 1
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