设矩阵 $\boldsymbol{A}=\left(\begin{array}{lll}1 & 2 & 0 \\ 0 & 3 & 1 \\ 1 & 3 & 0\end{array}\right), \boldsymbol{B}=\left(\begin{array}{lll}2 & 3 & 4 \\ 0 & 5 & 6 \\ 0 & 0 & 7\end{array}\right)$ ，则行列式 $\left|\boldsymbol{A} \boldsymbol{B}^{-1}\right|=$
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