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: 13

Answer

$0$

Work Step by Step

Since $\textbf {u}=\langle 1,1 \rangle$ and $\textbf {v}=\langle 1,-1 \rangle$, ${\textbf {u}\cdot\textbf {v}}=1(1)+1(-1)=1-1=0$
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