Answer
$-pq$
Work Step by Step
Given: $ a = (p,-p, 2p)$ and $b=(2q,q,-q)$
$ a \cdot b=p \cdot 2q+(-p) \cdot q+ 2p \cdot q$
$a \cdot b=p \cdot 2q+(-p) \cdot q+ 2p \cdot q=2pq-pq-2pq$
$=-pq$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Chapter 12 - Vectors and the Geometry of Space - 12.3 The Dot Product - 12.3 Exercises - Page 852: 6
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
