Question

ESCREVA A MATRIZ A = (a i j) 3 x 2 EM QUE a i j = i + j

Answer 1

Explicação passo-a-passo:

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

$a_{11}=1+1~\longrightarrow~a_{11}=2$

$a_{12}=1+2~\longrightarrow~a_{12}=3$

$a_{21}=2+1~\longrightarrow~a_{21}=3$

$a_{22}=2+2~\longrightarrow~a_{22}=4$

$a_{31}=3+1~\longrightarrow~a_{31}=4$

$a_{32}=3+2~\longrightarrow~a_{32}=5$

Assim:

$A=\left[\begin{array}{cc} 2&3 \\ 3&4 \\ 4&5 \end{array}\right]$