Question

construa as matrizes a=aij 3×2 tal que aij= i+j se i≠j 2i+j se i=j

Answer 1

Resposta:

Leia abaixo

Explicação passo-a-passo:

$A = \large\mathsf{\begin{vmatrix}a_{11}&a_{12}\\a_{21}&a_{22}\\a_{31}&a_{32}\end{vmatrix}} = \large\mathsf{\begin{vmatrix}(2)(1) +(1)&(1)+(2)\\(2)+(1)&(2)(2) +(2)\\(3)+(1)&(3)+(2)\end{vmatrix}} = \large\mathsf{\begin{vmatrix}3&3\\3&6\\4&5\end{vmatrix}}$