EM-2124

Matrix multiplication

E Math · Secondary 4 · Medium · Matrix multiplication

Matrix

A = \begin{pmatrix}2 & 5\\3 & 4\end{pmatrix}

and matrix

B = \begin{pmatrix}1 & 0\\2 & 3\end{pmatrix}

.
Find the matrix

AB

.

$\begin{pmatrix}12 & 15\\11 & 12\end{pmatrix}$
$\begin{pmatrix}12 & 15\\18 & 12\end{pmatrix}$
$\begin{pmatrix}4 & 15\\5 & 7\end{pmatrix}$
$\begin{pmatrix}2 & 5\\3 & 4\end{pmatrix}$

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