Question

Escreva a matriz A=(aij)3x3 tal que aij=2i+3j? ME ajudem

Answer 1

A matriz terá a seguinte forma:

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

Substituindo os valores:

$a_{ij} = 2i+3j$

$A=\left[\begin{array}{ccc} 2*1+3*1&2*1+3*2&2*1+3*3\\2*2+3*1&2*2+3*2&2*2+3*3\\2*3+3*1&2*3+3*2&2*3+3*3\end{array}\right]$

$A=\left[\begin{array}{ccc} 5&8&11\\7&10&13\\9&12&15\end{array}\right]$