Respostas

2013-07-03T17:07:03-03:00

|2,3,1,2,3|
|0,1,1,0,1|=0
|x,y,1,  x, y|

[(2*1*1)+(3*1*x)+(1*0*y)]-[(3*0*1)+(2*1*y)+(1*1*x)]=0
[2+3x+0]-0-2y-x=0
2-0+3x-x-2y=0
2x-2y+2=0