Question

monte uma matriz 2×3 Com aij = 3i-2j​

Answer 1

Resposta:

Explicação passo-a-passo:

$A=\left[\begin{array}{ccc}a_{11} &a_{12} &a_{13} \\a_{21} &a_{22} &a_{23} \\\end{array}\right]\\\\\\a_{ij}=3i-2j\\\\ a_{11}=3.1-2.1=3-2=1\\\\a_{12}=3.1-2.2=3-4=-1\\\\a_{13}=3.1-2.3=3-6=-3\\\\a_{21}=3.2-2.1=6-2=4\\\\a_{22}=3.2-2.2=6-4=2\\\\a_{23}=3.2-3.3=6-9=-3\\\\A=\left[\begin{array}{ccc}1&-1&-3\\4&2&-3\\\end{array}\right]$