Question

como fica essa matriz?

Answer 1

$\left[\begin{array}{ccc}a_{11}&a_{12}&a_{13}\\a_{21}&a_{22}&a_{23}\\a_{31}&a_{32}&a_{33}\end{array}\right] \\ a_{ij}= \frac{i}{j} \\ a_{11}= \frac{1}{1} =1\,\,a_{12}= \frac{1}{2} \,\,a_{13}= \frac{1}{3} \\ a_{21}= \frac{2}{1} =2\,\,a_{22}= \frac{2}{2} =1\,\,a_{23}= \frac{2}{3} \\ a_{31}= \frac{3}{1} =3\,\,a_{32}= \frac{3}{2} \,\,a_{33}= \frac{3}{3} =1\\ \\ B= \left[\begin{array}{ccc}1& \frac{1}{2} & \frac{1}{3} \\2&1& \frac{2}{3} \\3& \frac{3}{2} &1\end{array}\right]$