Question

determine as seguintes matrizes:
A=(aij)2x2 tal que aij=(i+j)2

Answer 1

$A=(aij)2.2$         $aij=(1+j)^2$

$A= \left[\begin{array}{ccc}a11&a12\\a21&a22\\\end{array}\right] =\left[\begin{array}{ccc}(1+1)^2&(1+2)^2\\(2+1)^2&(2+2)^2\\\end{array}\right] =\left[\begin{array}{ccc}2^2&3^2\\3^2&4^2\\\end{array}\right]$
 $A=\left[\begin{array}{ccc}4&9\\9&16\\\end{array}\right]$