Diketahui matriks A=[21−13−43]B=[210440]A=\left[ \begin{matrix} 2 & 1 & -1 \\ 3 & -4 & 3 \end{matrix} \right] B=\left[ \begin{matrix} 2 & 1 \\ 0 & 4 \\ 4 & 0 \e
Matematika
herigun21
Pertanyaan
Diketahui matriks A=[21−13−43]B=[210440]A=\left[ \begin{matrix} 2 & 1 & -1 \\ 3 & -4 & 3 \end{matrix} \right] B=\left[ \begin{matrix} 2 & 1 \\ 0 & 4 \\ 4 & 0 \end{matrix} \right]A=[231−4−13]B=⎣⎡204140⎦⎤ maka nilai A x B adalah ..
1 Jawaban
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1. Jawaban Syahrudi
[tex]A=\left( \begin{matrix} 2 & 1 & -1 \\ 3 & -4 & 3 \end{matrix} \right) \\ B=\left( \begin{matrix} 2 & 1 \\ 0 & 4 \\ 4 & 0 \end{matrix} \right) \\ A \times B = \left( \begin{matrix} 4 + 0 - 4 & 2 + 4 + 0 \\ 6 + 0 + 12 & 3 - 16 + 0\end{matrix} \right) = \left( \begin{matrix} 0 & 6 \\ 18 & - 13\end{matrix} \right)[/tex]