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: 85

Answer

$u$ and $v$ are orthogonal.

Work Step by Step

$u$ and $v$ are orthogonal vectors if and only if $u·v=0$ $u·v=⟨-3,8⟩⋅⟨8,3⟩=-3(8)+8(3)=-24+24=0$
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