Question

Como fazer a matriz A 2x3 AiJ= 2i+8j

Answer 1

Explicação passo-a-passo:

$A=\left[\begin{array}{ccc}a_{11} &a_{12}&a_{13}\\a_{21}&a_{22}&a_{23}\\a_{31}&a_{32}&a_{33}\end{array}\right]$

Temos que $a_{ij}=2i+8j$

$a_{11}=2.1+8.1=2+8=10\\\\a_{12}=2.1+8.2=2+16=18\\\\a_{13}=2.1+8.3=2+24=26\\\\a_{21}=2.2+8.1=4+8=12\\\\a_{22}=2.2+8.2=4+16=20\\\\a_{23}=2.2+8.3=4+24=28\\\\a_{31}=2.3+8.1=6+8=14\\\\a_{32}=2.3+8.2=6+16=22\\\\a_{33}=2.3+8.3=6+24=30$

Substituindo na matriz A:

$A=\left[\begin{array}{ccc}10&18&26\\12&20&28\\14&22&30\end{array}\right]$