Question

obter matriz A=(aij)3×2 definida por aij=3i-j ​

Answer 1

Resposta:

$A_{3x2}$ = $\left[\begin{array}{ccc}2&0\\5&4\\8&7\end{array}\right]$

Explicação passo a passo:

$a_{ij}$ = 3i - j

$a_{11}$ = 3.1 - 1 = 3 - 1 = 2

$a_{12}$ = 3.1 - 2 = 3 - 2 = 0

$a_{21}$ = 3.2 - 1 = 6 - 1 = 5

$a_{22}$ = 3.2 - 2 = 6 - 2 = 4

$a_{31}$ = 3.3 - 1 = 9 - 1 = 8

$a_{32}$ = 3.3 - 2 = 9 - 2 = 7

$A_{3x2}$ = $\left[\begin{array}{ccc}2&0\\5&4\\8&7\end{array}\right]$