Answer
$a•b=-pq$
Work Step by Step
$a•b=a_{x}b_{x}+a_{y}b_{y}+a_{z}b_{z}$
$=(p)(2q)+(-p)(q)+(2p)(-q)$
$=2pq-pq-2pq$
$=-pq$
Calculus: Early Transcendentals 9th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1337613924
ISBN 13:
978-1-33761-392-7
Chapter 12 - Section 12.3 - The Dot Product - 12.3 Exercises - Page 852: 6
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