Chapter 11.0A, Problem 8E

To determine

(a)

To find:

The dimension of the matrix $H=\left[\begin{array}{cc}1& 0\\ 0& -1\end{array}\right]$.

To determine

(b)

To check:

The matrix $H=\left[\begin{array}{cc}1& 0\\ 0& -1\end{array}\right]$ is a row matrix, a column matrix, a square matrix, or none of these.