Observe as matrizes abaixo:

= (

3 0 −1

−5 4 2

) = (

4

−3

10

7

) = [

0 1

−2 3

6 9

] = [ 1 2 3 4 ]

As matrizes , , e são, respectivamente, do tipo:

3 × 2 − 4 × 1 − 2 × 3 − 1 × 4

3 × 2 − 1 × 4 − 3 × 2 − 4 × 1

2 × 3 − 4 × 1 − 3 × 2 − 1 × 4

2 × 3 − 1 × 4 − 3 × 2 − 4 × 1​