Question

Obter a matriz A(aij) 2x2 definida aij = 3i-j

Answer 1

a11 = 3(1) - 1 = 2
a12= 3(1) - 2 = 1
a21 = 3(2) - 1 = 5
a22 = 3(2) - 2 = 4


$\left[\begin{array}{cc}2&1\\4&5\end{array}\right]$