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: 10

Answer

$a•b=-2000\sqrt 2$

Work Step by Step

$a•b=|a||b|cos\theta$ $=(80)(50)cos(\frac{3\pi}{4})$ $=-2000\sqrt 2$
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