Question

Escreva a matriz A=(aij)2×3,sabendo que: aij= -i+6j.

Answer 1

$A_{2\times3}=\left[\begin{array}{ccc}a_{11}&a_{12}&a_{13}\\a_{21}&a_{22}&a_{23}\end{array}\right] \\ \\A_{2\times3}=\left[\begin{array}{ccc}-1+6\cdot1&-1+6\cdot2&-1+6\cdot3\\-2+6\cdot1&-2+6\cdot2&-2+6\cdot3\end{array}\right] \\ \\A_{2\times3}= \left[\begin{array}{ccc}-1+6&-1+12&-1+18\\-2+6&-2+12&-2+18\end{array}\right] \\ \\A_{2\times3}=\left[\begin{array}{ccc}5&11&17\\4&10&16\end{array}\right]$