Question

Calcule os determinantes:
a)
b)
c)
d)

Answer 1

a) 4 - (-4)=
4 + 4=
8

b) 4 - (20)=
4 - 20=
-16

c) -4 + 4 + 0 -- (6 + 12 + 0)
0 -- 18 =
-18

d) 0 + 0 - 4 -- (4 + 9 + 0)=
-4 - 13=
-17