∴x2-2x+1+y2-4y+4=0,
∴(x-1)2+(y-2)2=0,
∴x=1,y=2,
∴原式=
1 |
1×2 |
1 |
2×3 |
1 |
2011×2012 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
2011 |
1 |
2012 |
1 |
2012 |
2011 |
2012 |
故答案是
2011 |
2012 |
1 |
xy |
1 |
(x+1)(y+1) |
1 |
(x+2)(y+2) |
1 |
(x+2010)(y+2010) |
1 |
1×2 |
1 |
2×3 |
1 |
2011×2012 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
2011 |
1 |
2012 |
1 |
2012 |
2011 |
2012 |
2011 |
2012 |