Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 8 - Review Exercises - Page 617: 88


$u$ and $v$ are orthogonal.

Work Step by Step

$u$ and $v$ are orthogonal vectors if and only if $u·v=0$ $u·v=(-2i+j)·(3i+6j)=-2(3)+1(6)=-6+6=0$
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