Question

como fazer multiplicação de matrizes?

Answer 1

→ Linha x Coluna

$\left[\begin{array}{ccc}1&2\\3&4\end{array}\right] *\left[\begin{array}{ccc}5&6\\7&8\end{array}\right] \\ \\ \\ \left[\begin{array}{ccc}1 *5 + 2 * 7&1 * 6 + 2 * 8\\3 * 5 + 4 * 7&3 * 6 + 4 * 8\end{array}\right] \\ \\ \\ \left[\begin{array}{ccc}5 + 14& 6 + 16\\15 +28& 18 +32\end{array}\right] \\ \\ \\ \left[\begin{array}{ccc}19&22\\43&50\end{array}\right]$