Question

Escreva a matriz A=(aij)3x2,de modo que aij =2i-j​

Answer 1

Olá,

Elementos da matriz:

$\tt \: a_{ij} = 2i - j$

$\tt \: a_{11} = 2(1)- 1 = 2 - 1 = 1 \\ \\ \tt \: a_{12} = 2(1) - 2 = 2 - 2 = 0 \\ \\ \tt \: a_{21} = 2(2)- 1 = 4 - 1 = 3 \\ \\ \tt \: a_{22} = 2(2) - 2 = 4 - 2 = 2 \\ \\ \tt \: a_{31} = 2(3) - 1 = 6 - 1 = 5 \\ \\ \tt \: a_{32} = 2(3) - 2 = 6 - 2 = 4$

Matriz A:

$\tt \: A = \left[ \begin{array}{ccc}1&0 \\ 3&2 \\ 5&4 \end{array} \right]$