Hasil dari (1 2) [-3 -1] [2 4 ] adalah

jawab

[tex] \left[\begin{array}{ccc}1&2\end{array}\right]\, \left[\begin{array}{ccc}-3&-1\\2&4\end{array}\right] \,=\, \left[\begin{array}{ccc} (1(-3)+2(2)) &(1(-1)+2(4))\end{array}\right] [/tex]

[tex] \left[\begin{array}{ccc} (-3+4) &(-1+8)\end{array}\right]\,=\, \left[\begin{array}{ccc} 1 &7 \end{array}\right][/tex]