Question

1-) calcule as determinantes :

Answer 1

Resposta:

Explicação passo-a-passo:

b)

1 5 6 1 5

3 6 9 3 6

- 9 0 - 4 - 9 0

D = 1.6.(-4) + 5.9.(-9) + 6.3.0 - [6.6.(-9) + 1.9.0 + 5.3.(-4)]

D= -24 -5.81+0- [-36.9+0+15.(-4)]

D = -24 - 405 - [- 324 - 60]

D = - 429 - [- 384]

D = - 429 + 384

D = - 45

R.: D = - 45

c)

3 6 8 3 6

1 0 2 1 0

4 6 10 4 6

D = 3.0.10 + 6.2.4 + 8.1.6 - (8.0.4 + 3.2.6 + 6.1.10)

D = 0 + 48 + 48 - (0 + 36 + 60)

D = 96 - (96)

D = 96 - 96

D = 0

R.: D = 0