Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 6 - Section 6.7 - The Dot Product - Exercise Set - Page 799: 84

Answer

Step 1. See figure. Step 2. $3$
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Work Step by Step

Step 1. Given $\vec v=-3j=0i-3j$, we can sketch the vector as shown in the figure. Step 2. We can find the magnitude of the vector as $|\vec v|=\sqrt {(0)^2+(-3)^2}=3$
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