问题描述:
如果有理数x,y满足|x-1|+(xy-2)2=0.
(1)求x,y的值;
(2)试求
+
+
+…+
(1)求x,y的值;
(2)试求
1 |
xy |
1 |
(x+1)(y+1) |
1 |
(x+2)(y+2) |
1 |
(x+2009)(y+2009) |
问题解答:
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