(ab-2)*(ab-2)+|b-1|=0,
ab-2=0,b-1=0
b=1,a=2.
1/(a+1)(b+1)+1/(a+2)(b+2)+~+1/(a+2011)(b+2011)
=1/2*3+1/3*4+.+1/2012*2013
=1/2-1/3+1/3-1/4+.+1/2012-2013
=1/2-1/2013
=2011/4026
已知(ab-2)*(ab-2)+|b-1|=0求：1/(a+1)(b+1)+1/(a+2)(b+2)+~+1/(a+20
3个回答
相关问题
-
已知|ab+2|+|a+1|=0,求1/（a-1)(b+1)+1/(a-2)(b+2).+1/(a-2004)(b+20
-
已知|a-b|+|ab-2|=0求ab/1+（a+1)（b+1)/1+（a+2)(b+2)/1+.（a+2006)（b+
-
已知(a-1)²+|ab-2|=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+…+1/(
-
已知|a-1|+|ab-2|=0,求1/ab+ 1/(a+1)(b+1)+ 1/(a+2)(b+2）+...+1/(a+
-
已知|a-1|+|ab-2|=0,求1/ab+ 1/(a+1)(b+1)+ 1/(a+2)(b+2）+...+1/(a+
-
已知根号(a-1)+(ab-2)^2=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a
-
如果|ab-2|+(b-1)^2=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+~+1/(a+20
-
已知|ab-2|+|a-1|=0.求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+.+1/(a+2011
-
已知3(a-1)^2+1/2|ab-2|=0,求1/ab+1/(a+1)(b+1)+1/（a+2）（b+2)+……1/(
-
已知,a=√2-1,b=√3+1,求(2a²b+2ab+1／a+1)-(ab²-ab-3／b-1)+