Question

Forme a matriz A=(aij)2x2 definida por aij= i²+j²

Answer 1

a11 a12
a21 a22

aij= i²+j²
aij= 1²+1²
aij= 1+1= 2

aij= 1²+2²
aij= 1+4= 5

aij=2²+1²
aij=4+1=5

aij=2²+2²
aij=4+4=8

Answer 2

$\left[\begin{array}{cc}a_{11}&a_{12}\\a_{21}&a_{22}\end{array}\right] \\ \\ \left[\begin{array}{cc}1^2+1^2&1^2+2^2\\2^2+1^2&2^2+2^2\end{array}\right] \\ \\ \left[\begin{array}{cc}2&5\\5&8\end{array}\right]$