ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+…+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)的值a=1 b=-3

来源：学生作业帮助网编辑：六六作业网时间：2024/12/27 23:01:50

ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+…+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)的值a=1b=-

ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+…+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)的值a=1 b=-3
ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+…+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)的值
a=1 b=-3

ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+…+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)的值a=1 b=-3
原式=ab[1/(a+b-1)(a+b)+1/(a+b)(a+b+1)+1/(a+b+1)(a+b+2)+…+1/(a+b+98)(a+b+99)+1/(a+b+99)(a+b+100)]=ab[1/(a+b-1)-1/(a+b)+1/(a+b)-1/(a+b+1)+1/(a+b+1)-1/(a+b+2)+…+1/(a+b+98)-1/(a+b+99)+1/(a+b+99)-1/(a+b+100)]
=ab[1/(a+b)-1/(a+b+100)]=75/49

75/49

ab+a+b+1 ab-a-b+1 a^-b^/ab-ab-b^/ab-ab-a^化简 a²+ab/a²-ab·1/a+b·b²-ab/ab 计算 (a+b-2ab)(a+b-2)+(1-ab)^2 1+a+ab+b=? 因式分解1-a-b+ab 因式分解 ab-a+b-1 ab+a+b+1 因式分解 (ab+a)+(b+1) 因式分解因式分解 ab-a-b+1 ab+a+b+1 因式分解因式分解:ab-a+b+1 ab-a-b+1因式分解, ab+a+b+1因式分解 (ab+a)+(b-1)因式分解因式分解(ab+1)平方+(ab+1)(a+b)+ab步骤 a+b/ab化简