Question

URGENTE Resolva, usando a Regra de Cramer :
{ -x- y+ z= 1
{ x+ y+ z=1
{ 2x+ 3x+ 2z= 0​

Answer 1

Explicação passo-a-passo:

-1 -1 1 1

1 1 1 1

2 3 2 0

D = -2 - 2 + 3 - 2 + 3 + 2

D = 2

1 -1 1

1 1 1

0 3 2

Dx = 2 + 0 + 3 + 0 - 3 + 2

x = Dx/D = 2

-1 1 1

1 1 1

2 0 2

Dy = -2 + 2 + 0 - 2 + 0 - 2

y = Dy/D = -2

-1 -1 1

1 1 1

2 3 0

Dz = 0 - 2 + 3 - 2 + 3 + 0

z = Dz/D = 1