$
\text { 设 }\left|\begin{array}{lll}
a_{11} & a_{12} & a_{13} \\
a_{21} & a_{22} & a_{23} \\
a_{31} & a_{32} & a_{33}
\end{array}\right|=1 \text {, 则 }\left|\begin{array}{ccc}
4 a_{11} & 4 a_{21} & 4 a_{31} \\
2 a_{11}-3 a_{12} & 2 a_{21}-3 a_{22} & 2 a_{31}-3 a_{32} \\
a_{13} & a_{23} & a_{33}
\end{array}\right|
$