Answer
$$u+v=\begin{bmatrix}0\\1\\0\\0\end{bmatrix}$$
Work Step by Step
The first and last two components of $u$ and $v$ are all $1$, so the corresponding components of $u+v$ are all $1+1=0$. The second component is $0+1=1$.
Linear Algebra: A Modern Introduction
by Poole, David
Published by
Cengage Learning
ISBN 10:
1285463242
ISBN 13:
978-1-28546-324-7
Chapter 1 - Vectors - 1.1 The Geometry and Algebra of Vectors - Exercises 1.1 - Page 17: 27
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