问题
填空题
若
|
答案
∵
+(ab-2)2=0,a-1
∴a-1=0且ab-2=0,
解得:a=1,b=2,
∴
+1 a
+…+1 (a+1)(b+1) 1 (a+2010)(b+2010)
=1+
+1 2×3
+…+1 3×4 1 2011×2012
=1+
-1 2
+1 3
-1 3
+…+1 4
-1 2011 1 2012
=1+
-1 2 1 2012
=
.3017 2012
故答案为:3017 2012