👤

Se consideră matricele: [tex]A=\left([tex]\begin{array}{r}1 \\ -2 \\ 3\end{array}\right), B=\left(\begin{array}{lll}-3 & 1 & 0\end{array}\right), C=\left(\begin{array}{c}2 \\ -1 \\ 4\end{array}\right)[/tex]. Calculați: [tex]3 \mathbf{A}-4^{t} \mathbf{B}+2 \mathrm{C}[/tex][/tex]