Question

escreva a matriz a=(aij) 5x3/aij=i+j​

Answer 1

$\Large\boxed{\begin{array}{l}\sf A=(a_{ij})_{5\times3},a_{ij}=i+j\\\sf a_{11}=2~a_{12}=3~a_{13}=4\\\sf a_{21}=3~a_{22}=4~a_{23}=5\\\sf a_{31}=4~a_{32}=5~a_{33}=6\\\sf a_{41}=5~a_{42}=6~a_{43}=7\\\sf a_{51}=6~a_{52}=7~a_{53}=8\\\sf A=\begin{bmatrix}\sf2&\sf3&\sf5\\\sf3&\sf4&\sf5\\\sf4&\sf5&\sf6\\\sf5&\sf6&\sf7\\\sf6&\sf7&\sf8\end{bmatrix}\end{array}}$