计算 1/[a(a+1)]+1/[(a+1)(a+2)]+……+1/[(a+2003)(a+2004)]
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/22 21:57:12
计算1/[a(a+1)]+1/[(a+1)(a+2)]+……+1/[(a+2003)(a+2004)]计算1/[a(a+1)]+1/[(a+1)(a+2)]+……+1/[(a+2003)(a+2004
计算 1/[a(a+1)]+1/[(a+1)(a+2)]+……+1/[(a+2003)(a+2004)]
计算 1/[a(a+1)]+1/[(a+1)(a+2)]+……+1/[(a+2003)(a+2004)]
计算 1/[a(a+1)]+1/[(a+1)(a+2)]+……+1/[(a+2003)(a+2004)]
原式=1/a-1/(a+1)+1/(a+1)-1/(a+2)……+1/(a+2003)-1/(a+2004)
=1/a-1/(a+2004)
=2004/a(a+2004)
1/a(a+1)+.......=1/a-1/(a+1)+1/(a+1)-1/(a+2)+......+1/(a+2003)-1/(a+2004)=1/a-1/(a+2004)=2004/a(a+2004)
计算:a(a+1)=?
计算 a^2/1+a+1-a
(a+1)(a+2)(a-3)计算
计算:a²/a-1-a-1.
计算:1-a-a(1-a)-a(1-a)
计算:[a-(1/a)]/a^2-2a+1/a
怎么计算(a+1)(a*a+1)a*a*a*a+1).a(100)+1)
计算:2a-(a-1)+a^2-1/a+1;
计算:a+1/a-1+a-2/1-a
计算4a /(a^2-1)+(1+a)/(1-a)
计算/1-a/+/2a+1/+/a/ (a
计算a-1/a÷(a-1/a)=
计算(a+1)(a+2)(a+3)(a-6)
计算(a三次方-a)/(a²+2a+1)
计算:a分之a+1÷(a²+a)
计算,(a+3)(a-1)+a(a-2)
计算:a-b分之a+b-a-a+1
(a+3)(a-1)+a(a+2)化简计算,