| 标题 | 解决时间 | 回答数 | 回答者 |
|---|---|---|---|
| 为什么要把公比相乘呢，不明白 [数列] | 2021-01-25 | 1 | |
| 怎么推导出的a.n-1/2*4^n+2= [数列] | 2021-01-24 | 1 | |
| 老师这种题是不是直接带 入 1 就可以 [数列] | 2021-01-24 | 2 | |
| 我哪里做错？ [数列] | 2021-01-24 | 3 | |
| 已知{an}是等差数列，且满足图，求数 [数列] | 2021-01-24 | 3 | |
| 已知数列{an}满足图，求数列{1/a [数列] | 2021-01-24 | 3 | |
| 已知{an}是等差数列，数列{bn}是 [数列] | 2021-01-24 | 3 | |
| 若{an}，{bn}满足图，则{bn} [数列] | 2021-01-24 | 3 | |
| 等比数列中，若满足图，Sn是其前n项和 [数列] | 2021-01-24 | 3 | |
| 已知等差数列中，a3，a5是x²-3x [数列] | 2021-01-24 | 4 | |
| 老师为啥Sn与Sn减一同时最小 [数列] | 2021-01-23 | 1 | |
| 如图 [数列] | 2021-01-23 | 3 | |
| 等差数列的公差d<0，且满足图，则通项 [数列] | 2021-01-23 | 2 | |
| 将数列{2n-1}和{3n-2}的公共 [数列] | 2021-01-23 | 2 | |
| 设数列{an}的前n项和为Sn，满足图 [数列] | 2021-01-23 | 2 | |
| 已知等差数列，求当n为何值时，数列{a [数列] | 2021-01-23 | 2 | |
| 我觉得这样简单好多 [数列] | 2021-01-23 | 1 | |
| 已知等比数列满足a2=6，6a1+a3 [数列] | 2021-01-23 | 3 | |
| 已知数列{an}满足a0=1，an=a [数列] | 2021-01-22 | 3 | |
| 据图知an等于 [数列] | 2021-01-22 | 4 |
