Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 12 - Section 12.3 - The Dot Product - 12.3 Exercises - Page 812: 2

Answer

$a•b=7$

Work Step by Step

$a•b=a_{x}b_{x}+a_{y}b_{y}=(5)(3)+(-2)(4)=7$
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