TeX джерело:

A_{11}\,=\,\left|\begin{array}{rr}-3&2\\-4&2\end{array}\right|=2,\;\; A_{21}\,=\,-\,\left|\begin{array}{rr}0&-1\\-4&2\end{array}\right|=4,\;\; A_{31}\,=\,\left|\begin{array}{rr}0&-1\\-3&2\end{array}\right|=-3,\;\;