Question

escreva a matriz A= (a)2x2 em que a=3 i-2j

Answer 1

$\left[\begin{array}{cc}(3x1)-1&(3x1)-2&\\(3x2)-1&(3x2)-2\\\end{array}\right] = \left[\begin{array}{cc}2&1&\\5&4&\\\end{array}\right]$