Answer
False.
Work Step by Step
By definition: $||u\times v||=||u||\cdot||v||sin\theta.$
Hence, the given statement is false.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 9 - Polar Coordinates; Vectors - 9.7 The Cross Product - 9.7 Assess Your Understanding - Page 631: 5
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