tolong bantu matriks nya kak besok dikumpul

jawab

[tex] \frac{1}{4} \left[\begin{array}{ccc}-2&6&1\end{array}\right] \left[\begin{array}{ccc}3&1\\-1&4\\4&-2\end{array}\right] \,= \frac{1}{4} \left[\begin{array}{ccc}4&-28\end{array}\right] \,= \left[\begin{array}{ccc}1&-7\end{array}\right] [/tex]