Question

escreva a matriz quadrada A de ordem 2 , tal que a= i2-3j+j.

Answer 1

$A= \left[\begin{array}{ccc}a_{11}&a_{12}\\a_{21}&a_{22}\end{array}\right] \\ \\ A= \left[\begin{array}{ccc}{1^2-2.1}&{1^2-2.2}\\{2^2-2.1}&{2^2-2.2}\end{array}\right] \\ \\ A= \left[\begin{array}{ccc}{-1}&{-3}\\{2}&{0}\end{array}\right]$

Answer 2

a=i²-3j+j

$\left[\begin{array}{ccc}a_{11}&a_{12}\\a_{21}&a_{22}\\\end{array}\right]$

$\left[\begin{array}{ccc}1^2-3.1+1&1^2-3.2+2\\2^2-3.1+1&2^2-3.2+2\\\end{array}\right]$

$\left[\begin{array}{ccc}-1&-3\\2&0\\\end{array}\right]$