Question

Construa a matriz A = (aij )2x2 aij = 2 i j

Answer 1

Olá, Joice.

 

$<var>A = (a_{ij})_{2\times2},\ onde:\ a_{ij} = 2 i j\\\\ a_{11}=2.1.1=2 \\ a_{12}=2.1.2=4 \\ a_{21}=2.2.1=4 \\ a_{22}=2.2.2=8 \\\\ A=\left[\begin{array}{cc}a_{11}&a_{12}\\a_{21}&a_{22}\end{array}\right]=\left[\begin{array}{cc}2&4\\4&8\end{array}\right]</var>$