Trigonometry 7th Edition

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

Chapter 7 - Section 7.6 - Vectors: The Dot Product - 7.6 Problem Set: 18

Answer

$30$

Work Step by Step

Since $\textbf {u}=\langle 5,3 \rangle$ and $\textbf {v}=\langle 3,5 \rangle$, ${\textbf {u}\cdot\textbf {v}}=5(3)+3(5)=15+15=30$.
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