Elementary Linear Algebra 7th Edition

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


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
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