28. Akxk matrix A = [a] is defined to be skew cross-symmetric if a_ij = -a_j+1-i, a_i+1-j for all i = 1, ..., k, j = 1, 2, ..., k. Show that the matrices A and B below are skew cross-symmetric.

A =

$$\begin{bmatrix}

0 & 1 & -3 \\

0 & 0 & 0 \\

3 & -1 & 0

\end{bmatrix}$$

; B =

$$\begin{bmatrix}

2 & 0 & -2 \\

1 & 1 & -3 \\

3 & -1 & -1

\end{bmatrix}$$