Calculus 8th Edition

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: 8

Answer

7

Work Step by Step

The dot product of a= 3i + 2j - k and b= 4i + 5k is: <3,2,-1> dotted with <4,0,5> = (3×4) + (2×0) + (-1×5)= 7
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