若│a-1│+│ab-2│=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a+2002)(b+2002)的值,本人有急用,

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 20:07:48
若│a-1│+│ab-2│=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a+2002)(b+2002)的值,本人有急用,若│a-1│+│ab-2│=0,求1/ab+

若│a-1│+│ab-2│=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a+2002)(b+2002)的值,本人有急用,
若│a-1│+│ab-2│=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a+2002)(b+2002)的值,本人有急用,

若│a-1│+│ab-2│=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a+2002)(b+2002)的值,本人有急用,
解得:a=1,b=2
根据分解公式:
1/ab+1/(a+1)(b+1)+...+1/(a+2002)(b+2002)
=1/(1*2)+1/(2*3)+...+1/(2003*2004)
=(1-1/2)+(1/2-1/3)+(1/3-1/4)+.+(1/2002-1/2003)+(1/2003-1/2004)
=1-1/2004
=2003/2004

若,│a-2 │+│ b-1│=0求5ab^2-[2a^2b-(4ab^2-2a^2b)] 已知│a+1│+(b-2)²=0,求(a²b-2ab)-(3ab²+4ab)的值为 若│a-1│+│ab-2│=0,求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a+2002)(b+2002)的值,本人有急用, 1,已知│a-2│与│b-3│互为相反数,求ab+b分之a.2,若a>0,b 若集合{0,a^2,a-b}={1,a,ab}求b-a的值 已知(a-1)^2+│ab-2│=0求1/ab+1/(a+1)(b+2)+1/(a+2)(b+2)+...+1/(a+2005)(b+2005)的值 已知ab满足根号下2a+8 +│-根号3│=0,求(a+2)x+b^2=a-1的值 已知│a+2b-9│+﹙3a-b+1﹚2(平方)=0 求2a 2的平方-3ab b+(ab-2)+│b-1│=0求ab分之二+(a+1)(b+1)分之一+(a+2)分之一+……+(a+2011)(a+2011)分之一.等于多少. │a-2│+(b+1)²+c²=0,求a²-2ab-5a²+12ac+3ab+-c²-8ac-2a² 已知│a+1│+(2a-b)²=0,求多项式3ab-15b²+5a²-6ab+15a²-2b²的值是多少? 已知(2a-b)²+│3a+b+5│=0,求代数式1-(a-b/a+2b)÷(a²-b²/a²+4ab+b²)的值!急 诺│a-b+3│+(2a+b)^2=0,化简2a^3b(2ab+1)-a^2(-2ab)^2 已知:A=5a二次方+2ab,且B=2a二次方-ab-1.(1):计算A-2B; (2):若│a+1│+(b-2)的2次方=0,求A-2B的值 若ab>0,绝对值a-b=b-a,求a-2b+1 已知:字母a、b满足√(a-1)+│b-2│=0求1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+……+1/(a+2008)(b+2008)的值? 若│ab-2│+(b-1)二次方=0求ab分之1 + (a+1)×(b+1)分之1 +……………………+(a+2006)×(b+2006)分之1 的值 │a+b+3│+(ab-1)的4次幂=0,求式子(a+b)的2次幂除以3ab-3ab除以a+b+1的值