︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/26 22:03:28
︱a-1︱+︱ab-2︱=0a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是︱a-1︱+︱ab-2︱=01
︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1
写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
︱a-1︱+︱ab-2 ︱=0
a-1=0 a=1 ab-2=0 b=2
a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2005)/1
=1-1/2+1/2-1/3+……+1/2006-1/2007
=2006/2007
54543
︱a-1︱+︱ab-2 ︱=0 a+b/1+(a+1)(b+1)/1+(a+2)(b+2)/1+(a+3)(b+3)/1……+(a+2005)(b+2006)/1写错了题目是 ︱a-1︱+︱ab-2 ︱=0 1/ab+1/(a+1)(b+1)+1/(a+2)(b+2)+1/(a+3)(b+3)……+1/(a+2005)(b+2006) 写出思路。
已知︱a-4︱+︱8-b︱2=0求ab分之a+b
已知︱a+1︱+(2a-b)的二次方+0,求3ab-3b的二次方+5a的二次方-6ab+3a的二次方-b的二次方
若A(tan²a,cot²a),B(sec²a,csc²a),则︱AB︱=
︱a+b︱=a-b 若a ,b为有理数 ,ab的值为?谢谢哈告下我
ab不等于0,则︱a︱/a+︱b︱/b的取值不可能是()谢谢了,ab不等于0,则︱a︱/a+︱b︱/b的取值不可能是() A.0 B.1 C.2 D.-2
[a+b][a^2-ab+b^2]+ab-a^2-b^2为什么等于[a^2-ab-b^2][a+b-1]=0
已知:︱a-2︱+(b-1)²=0 试求:1/ab+1/(a+1)(b+1)+……+1/(a+2011)(b+2011)的值.
已知:︱a-2︱+(b-1)²=0 试求:1/ab+1/(a+1)(b+1)+……+1/(a+2011)(b+2011)的值.最好用文字详细的解答,谢谢.
a(a-1)-(a×a-b)=-5,求(a×a+b×b)÷2-ab
设a>b>0,证明a^2+1/ab+1/a(a-b)>=4
若集合{0,a^2,a-b}={1,a,ab}求b-a的值
已知a+2b=0,求a*a+2ab-b*b/2a*a+ab+b*b
若ab>0,绝对值a-b=b-a,求a-2b+1
a(a+b)(a-b)-a(a+b)(a+b),其中(a+b)=1,ab=-1/2
等式:(a+b)^0=1 (a+b)^1=a+b (a+b)^2(a+b)^0=1(a+b)^1=a+b(a+b)^2=a^2+2ab+b^2(a+b)^3=a^3+3a^2b+3ab^2+b^3问:(a+b)^4=?(a+b)^5=?``````` (a+b)^9=?
已知a不等于b,且a^2/(ab+b^2)-b^2/(a^2+ab)=0,求证1/a+1/b=1/(a+b)
已知a不等于b,且a^2/(ab+b^2)-b^/(a^2+ab)=0,求证1/a+1/b=1/(a+b)