Question

determine a matriz x tal que x -A+B=0,sendo os dados A=|3 -2 5| e B=|1 -4 2|"

Answer 1

$\displaystyle \mathsf{x-a+b=0}\\\displaystyle \mathsf{x=a-b}\\\\\\x=\left[ \begin{array}{ccc}3 & -2 & 5 \\ \end{array} \right]-\left[ \begin{array}{ccc}1 & -4 & 2 \\ \end{array} \right]\to\left[ \begin{array}{ccc}2 & 2 & 3 \\ \end{array} \right]$