Question

calcule os determinantes, aplicando a regra de sarrus [1 2 3]
[3 2 1]
[0 4 3]

Answer 1

[1 2 3][1 2]
[3 2 1][3 2]
[0 4 3][0 4]
=6+36-4-18
=42-4-18
=38-18
=20