化简:1/(a-1)+1/{(a-1)(a+2)}+1/{(a-2)(a-3)``````+1/{(a-99)(a-10
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/19 04:05:32
化简:1/(a-1)+1/{(a-1)(a+2)}+1/{(a-2)(a-3)``````+1/{(a-99)(a-100)}
1/(a-1)+1/{(a-1)(a-2)}+1/{(a-2)(a-3)``````+1/{(a-99)(a-100)} =1/(a-1)+1/(a-1)-1/(a-2)+1/(a-2)-1/(a-3)+...+1/(a-99)-1/(a-100) =2/(a-1)-1/(a-100) =(a-199)/[(a-1)(a-100) 1/{(a-1)(a+2)}应该是1/{(a-1)(a-2)}吧?
(a 1)(a 2)(a 3)(a
化简a(a+2)-(a-1)(a+1)
(高一集合)已知A={2,4,a*a*a-2a*a-a+7},B={1,a+3,a*a-2a+2,a*a*a+a*a+3
求和:1,a+a^2,a^3+a^4+a^5,a^6+a^7+a^8+a^9,···(a不等于0)
a(a-1)(a-2)(a-3)(a-4)因式分解
(a+1/a)*=a*+2+1/a* (a-1/a)*=a*-2+1/a*
化简:(2a+1/a²-1)*a²-2a+1/a²-a-(1/a+1)
化简[a^2+a/a^2-1+(a^2-a分之根号下a^2-2a+1)
(a- 2a/a)÷1-a² / a²+a
化简:3a-[5a-(2a-1)]=
化简(a^3-a)(a^2+1)等于多少?
【1】a+a=a×a a= [ ]【2】a×a=a÷a a=[ ]【3】a×a=a-a a=[ ] [4]a-a=a+a