Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 7 - Test - Page 416: 23



Work Step by Step

$|\textbf {u}|=\sqrt {5^{2}+12^{2}}=\sqrt {25+144}=\sqrt {169}=13$
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