Fie matricele [tex]A=\left([tex]\begin{array}{rrrr}1 & -1 & 0 & 3 \\ 0 & 2 & 4 & 1\end{array}\right), \quad B=\left(\begin{array}{rrrr}-2 & 1 & 0 & 5 \\ 3 & -1 & 1 & 1\end{array}\right), \quad C=\left(\begin{array}{rrrr}0 & 1 & 0 & 1 \\ -1 & 0 & -1 & 0\end{array}\right)[/tex] pentru care să calculăm [tex]A-B-C[/tex].[/tex]