Question

2) Construa a matriz A = (a ij ) do tipo 2 x 3, sendo a ij = 2i + j.

Answer 1

$a_{11}=2.1+1=3\\a_{12}=2.1+2=4\\a_{13}=2.1+3=5$

$a_{21}=2.2+1=5\\a_{22}=2.2+2=6\\a_{23}=2.2+3=7$

$A=\begin{vmatrix}3&4&5\\5&6&7\end{vmatrix}$