Question

escreva as matrizes de forma explicita A 3×3/aij=i+2j

Answer 1

Resposta:

$\left[\begin{array}{ccc}a_{11} &a_{12} &a_{13} \\a_{21} &a_{22} &a_{23} \\a_{31} &a_{32} &a_{33} \end{array}\right]$

Explicação passo-a-passo:$\left[\begin{array}{ccc}3&5&7\\4&6&8\\5&7&9\end{array}\right]$

$a_{11}=1+2*1\\a_{12} =1+2*2\\a_{13} =1+2*3\\a_{21}=2+2*1\\a_{22}=2+2*2\\a_{23}=2+2*3\\a_{31}=3+2*1\\a_{32}=3+2*2\\a_{33}=3+2*3$