Vector Spaces

Abstract vector spaces over a field, subspaces, bases, dimension, coordinates, and the four fundamental subspaces.0/14 mastered

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Let

A=\begin{pmatrix}1&2\end{pmatrix}

, a

1\times 2

matrix. The null space

\operatorname{Null}(A)=\{\mathbf{x}:A\mathbf{x}=\mathbf{0}\}

is a subspace of

\mathbb{R}^2

. What is its dimension?

Your answer

#3851