Question

Escreva a matriz A= (aij) 2x2 onde aij = 2i+3j

Answer 1

a11 = 2.1+3.1 = 5
a12 = 2.1+3.2 = 8
a21 = 2.2+3.1= 7
a22 = 2.2 + 3.2 = 10



$A= \left[\begin{array}{ccc}5&8\\7&10\end{array}\right]$

Answer 2

$\left[\begin{array}{ccc}a_{11}&a_{12}\\a_{21}&a_{22}\\\end{array}\right] = \left[\begin{array}{ccc}{2(1)+3(1)}&{2(1)+3(2)}\\{2(2)+3(1)}&2(2)+3(2)}\\\end{array}\right] = \left[\begin{array}{ccc}5&8\\7&10\end{array}\right]$

Espero ter ajudado. :))