Question

escreva a matriz B=(bij)3×2 , sendo aij=2i+3j

Answer 1

Explicação passo a passo:

essa matriz tem 3 linhas e 2 colunas

aij = 2i + 3j

as linhas

2   2  

4   4  

6   6

com as colunas

5   8

7   10

9   12

Answer 2

Resposta:

$B=\left[\begin{array}{ccc}5&8\\7&10\\9&12\end{array}\right]$

Explicação passo a passo:

$B=\left[\begin{array}{ccc}a_1_1&a_1_2\\a_2_1&a_2_2\\a_3_1&a_3_2\end{array}\right] \\\\a_i__j=2i+3j$

$a_1_1=2.1+3.1=2+3=5\\\\a_1_2=2.1+3.2=2+6=8\\\\a_2_1=2.2+3.1=4+3=7\\\\a_2_2=2.2+3.2=4+6=10\\\\a_3_1=2.3+3.1=6+3=9\\\\a_3_2=2.3+3.2=6+6=12\\\\B=\left[\begin{array}{ccc}5&8\\7&10\\9&12\end{array}\right]$