Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 8 - 8.4 - Vectors and Dot Products - 8.4 Exercises - Page 597: 89

Answer

The magnitude of u squared.

Work Step by Step

Since the two vectors are in the same direction, their dot product is equal to their magnitudes multiplied by each other. Since the magnitudes are the same, this is equal to the magnitude of each vector squared.
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