| 标题 | 解决时间 | 回答数 | 回答者 |
|---|---|---|---|
| 这一步怎么变的，给一下过程 [数列] | 2021-01-28 | 1 | |
| 老师，麻烦总结如图，数列性质及红线所应用 [数列] | 2021-01-28 | 1 | |
| 老师请看图 [数列] | 2021-01-28 | 3 | |
| 老师请看图 [数列] | 2021-01-28 | 3 | |
| 老师，麻烦讲解，如何构造，等差数列 [数列] | 2021-01-28 | 1 | |
| 老师，麻烦发下，等差，等比数列前n项和公 [数列] | 2021-01-28 | 1 | |
| 老师详细讲下这道题 [数列] | 2021-01-28 | 2 | |
| 老师，麻烦把具体步骤写一下，谢谢 [数列] | 2021-01-27 | 2 | |
| 数列 [数列] | 2021-01-26 | 3 | |
| 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 |
