Question

Calcule os determinantes das matrizes abaixo:
3
1
A= 5 2
-2 1
2 3
-50
11 2.
C =
1
0
1
1
10 0 2 0
B = 3 -2 1 5
60-14
1.5 0 3 2
1
1
0
2.
1
0
0
0
1
0
0
1
7 4
1-1

Answer 1

Resposta:

x²-2×=0

x(x-2)

x=0 x-2=0

×=2

(b)

2x²+5=0

2ײ=-5

S={ }

(a)

x²-20=0

Vx²=V20

x=2V5

(c)

fiz as incompletas