Question

Aplicando a regra de Sarrus, calcule os determinantes:

A) 3 1 3
2 -1 2
8 5 8


B) 0 0 0
4 1 3
-1 2 1

Answer 1

a) 3 1 3 3 1
2 -1 5 2 -1
8 5 8 5 8
-24+25+48--(16+75-24)=
49--67=
-18

b) 0 0 0 0 0
4 1 3 4 1
-1 2 1 2 1
0+0+0--(0+0+0)=
0-0=
0