Calculati produsul matricelor ![A=\left([tex]\begin{array}{rr}1 & -1 \\ 2 & 3\end{array}\right), B=\left(\begin{array}{ll}1 & -1\end{array}\right)](https://tex.z-dn.net/?f=A%3D%5Cleft%28%5Btex%5D%5Cbegin%7Barray%7D%7Brr%7D1+%26amp%3B+-1+%5C%5C+2+%26amp%3B+3%5Cend%7Barray%7D%5Cright%29%2C+B%3D%5Cleft%28%5Cbegin%7Barray%7D%7Bll%7D1+%26amp%3B+-1%5Cend%7Barray%7D%5Cright%29 "A=\left([tex]\begin{array}{rr}1 & -1 \\ 2 & 3\end{array}\right), B=\left(\begin{array}{ll}1 & -1\end{array}\right)")
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Răspuns:
Explicație pas cu pas:
A(2, 1) x B(1, 2) = C(2, 2)
C = [ 1x1+(-1)x1 1+(-1)(-1) / 2x1+3x1 -2x1-3x1] =
[ 0 0 / 5 -5]
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