Question

construa as seguintes matrizes
a=(aij)3x3 tal que aij= (1se i=j)

Answer 1

$\left[\begin{array}{ccc}a11&a12&a133\\a21&a22&a23\\31&a32&a33\end{array}\right]$  = $\left[\begin{array}{ccc}1&2&3\\2&1&6\\3&6&1\end{array}\right]$