Question

Determine as matrizes:
a) a= (Aij) 2x3, sendo Aij = 2i -3j

Answer 1

$\left[\begin{array}{ccc}a_{11}&a_{12}&a_{13}\\a_{21}&a_{22}&a_{23}\end{array}\right] \\ \\ \\ \left[\begin{array}{ccc}2.1-3.1&2.1-3.2&2.1-3.3\\2.2-3.1&2.2-3.2&2.2-3.3\end{array}\right] \\ \\ \\ \left[\begin{array}{ccc}-1&-4&-7\\1&-2&-5\end{array}\right]$