若三阶行列式\(\begin{vmatrix} a_{11} & a_{12} &a_{13} \\ a_{21} & a_{22} &a_{23} \\ a_{31} & a_{32} &a_{33} \end{vmatrix} =1\)，则\(\begin{vmatrix} 6a_{11} & 3a_{12} &3a_{13} \\ 2a_{21} & a_{22} &a_{23} \\ 4a_{31} & 2a_{32} &2a_{33} \end{vmatrix} =\)