Answer
True
Work Step by Step
If $\mathbf{u}$ and $\mathbf{v}$ have equal magnitudes and opposite directions, then $\mathbf{v}=-\mathbf{u}$. Then $\mathbf{u}+\mathbf{v}=\mathbf{u}+(-\mathbf{u})=\mathbf{u}-\mathbf{u}=\mathbf{0}$.
Calculus 10th Edition
by Larson, Ron; Edwards, Bruce H.
Published by
Brooks Cole
ISBN 10:
1-28505-709-0
ISBN 13:
978-1-28505-709-5
Chapter 11 - Vectors and the Geometry of Space - 11.1 Exercises - Page 757: 90
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