Question

usando a regra de sarrus, resolva:

2 1 -2
3 -1 0
4 1 -3

Answer 1

usando a regra de sarrus, resolva:

2 1 -2 2 1
3 -1 0 3 -1
4. 1 -3 4 1

d=(6+0-6)-(8+0-9)

d=0-(-1)

d=1


espero ter ajudado!

boa tarde!

Answer 2

2 1 -2 2 1
3 -1 0 3 -1 = -2.-1.4+2.0.1+1.3.-3-2.3.1+1.0.4+2.-1.-3
4 1 -3 4 1

= 8+0+-9-(-6+0+(-6))
= -1+6+6
= 11