Question

Resolva a equação matricial | 1 1 1 | | x | | 0 |

| 2 1 3 | . | y | = | 1 |.

| 1 -1 4 | | z | | 1 |

Answer 1

Resposta:

Explicação passo-a-passo:

[1 1 1| 0]

[2 1 3| 1]

[1 -1 4| 1]

L2=L2-2*L1

L3=L3-L1

[1 1 1| 0]

[0 -1 1| 1]

[0 -2 3| 1]

L3=L3-2*L2

[1 1 1| 0]

[0 -1 1| 1]

[0 0 1| -1]

z = -1

-y+z = 1

-y-1=1

-y=2

y = -2

x+y+z=0

x-2-1=0

x=3

x=3, y = -2, z = -1