Odpowiedzi

2009-12-10T17:45:55+01:00
Y+z=2
2x-y-z=0
x-3z=3

y=2 -z
2x -(2-z) -z = 0
x-3z =3

y=2 -z
2x -2 + z -z =0
-3z = 3 -x |:(-3)

y=2 -z
x=1
z = -1 + 1/3x

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

y=2 + 2/3
x=1
z= - 2/3

y=2 i 2/3
x=1
z= - 2/3

spr.
2 i 2/3 + (-2/3) = 2 (+)

2 – 2 I 2/3 – (-2/3) = 0 (+)

1 – 3*(-2/3) = 3
1+2 = 3 (+)