What matrix is the zero vector of the space $M_{2\times 3}$?
Solution: The zero vector in $M_{2\times 3}$ is
$$
{\bf 0}=\begin{pmatrix}0 & 0 &0 \\0 & 0 & 0\end{pmatrix}.
$$
What matrix is the zero vector of the space $M_{2\times 3}$?
Solution: The zero vector in $M_{2\times 3}$ is
$$
{\bf 0}=\begin{pmatrix}0 & 0 &0 \\0 & 0 & 0\end{pmatrix}.
$$