Question

construa matrizes

a. A4 x2, onde aij= i+j+2

Answer 1

a11     a12 
a21     a22
a31     a32
a41     a42


1+1+2=4
1+2+2=5
2+1+2=5
2+2+2=6
3+1+2=6
3+2+2=7
4+1+2=7
4+2+2=8



               4      5
               5      6
               6      7
               7      8

Answer 2

$\left[\begin{array}{cc}a_{11}&a_{12}\\a_{21}&a_{22}\\a_{31}&a_{32}\\ a_{41}&a_{42}\end{array}\right]$

$\left[\begin{array}{cc}1+1+2&1+2+2\\2+1+2}&2+2+2\\3+1+2&3+2+2\\ 4+1+2&4+2+2\end{array}\right] \\ \\ \left[\begin{array}{cc}4&5\\5&6\\6&7\\ 7&8\end{array}\right]$