Respostas

2013-07-02T12:28:55-03:00

(1)3x-y-2z=3,  (1) = 2*(2)+(1)
(2)x+2y+z=1
(3)6x+5y+5z=6, (3) = -5*(2)+(3)

(1)5x+3y=5
(2)x+2y+z=1
(3)x-5y=1, (3) = -5*(3)+(1)

(1)5x+3y=5
(2)x+2y+z=1
(3)28y=0

y = 0/28
y =0

5x+3(0)=5
5x =5
x=5/5
x=1

x+2y+z=1
(1)+2(0)+z=1
z = 1-1
z=0

Solução (1, 0, 0) SPD

2 3 2