Precalculus (10th Edition)

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: 1



Work Step by Step

Since $u$ and $v$ are parallel, then $u=k\cdot v$. Hence, $u\times v=(kv)\times v=k(v\times v)$ Since $v \times v =0$, then $k(v\times v)=k(0)=0.$ Thus, the given statement is true.
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