EM-2125

Matrix multiplication

E Math · Secondary 4 · Hard · Matrix multiplication

1. $\begin{pmatrix}170 \\200\end{pmatrix}$
2. $\begin{pmatrix}190 \\190\end{pmatrix}$
3. $\begin{pmatrix}160 \\215\end{pmatrix}$
4. $\begin{pmatrix}270 \\320\end{pmatrix}$

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