已知数列{an},满足a1=1,an=a1+2a2+3a3+…+?
2007-05-13 16:31:10w***
已知数列{an},满足a1=1, an=a1+2a2+3a3+…+(n-1)an-1(n≥2),已知数列{an},满足a1=1, an=a1+2a2+3a3+…+(n-1)an-1(n≥2),
则{an}的通项an={ 1 n=1,
? n≥2.
已知数列{an},满足a1=1,an=a1+2a2+3a3+…+(n-1)an-1(n≥2),已知数列{an},满足a1=1,an=a1+2a2+3a3+…+(?
最佳回答
2007-05-13 20:04:26
2007-05-13 23:56:30
2007-05-13 17:20:56
很赞哦! (277)
相关文章
- 已知数列{an}满足a1=1,a(n+1
- 已知数列{an}满足a1=1,a(n+1
- 已知数列{an}满足a1=2,an+1=
- 已知数列{an}中a1=1,an+1=2
- 高一数学题已知数列{an}满足a1=1
- 数学已知数列{an}满足a1=1,an
- 已知数列an、bn,满足a1=1,2an
- 数学问题.已知数列{an}满足a1=4
- 在数列{an}中,已知a1=1,a2=3
- 已知数列{an}满足a1=1,a2=3,
- 已知数列{an}满足a1=a,a2=2,
- 已知数列<an>中,a1=1,an+1=
- 在数列{an}中,a1=1,a2=5,a
- 已知数列{an}满足a1=a(a>0,a
- 已知数列{an}中,a1=5,an=2a
- 已知数列an中,a1=2,an+1=二
- 已知数列{an}、{bn}满足a1=2,
- 已知数列{an}满足a1=1/2,a1
- 已知数列{an}满足2an+1=an+
- 高中数学高手进已知数列{an}满足a
- 已知数列{an}满足:a1=1,a2=1