| 标题 | 发布时间 | 回答数 | 提问者 |
|---|---|---|---|
| 老师，请问这道题t2 n+1 -t二n- [数列] | 5小时前 | 2 | ******396561251631 |
| 用待定系数法具体过程 [数列] | 2026-01-13 | 2 | ******100633 |
| 是否有更快方法 [数列] | 2026-01-13 | 2 | ******100633 |
| 老师看看吧 [数列] | 2026-01-13 | 1 | ******61215 |
| 老师看看吧 [数列] | 2026-01-13 | 1 | ******61215 |
| 老师看看吧 [数列] | 2026-01-13 | 1 | ******61215 |
| 老师看看吧 [数列] | 2026-01-13 | 1 | ******61215 |
| 老师看看吧 [数列] | 2026-01-13 | 1 | ******61215 |
| 老师看看吧 [数列] | 2026-01-13 | 1 | ******61215 |
| 老师看看吧 [数列] | 2026-01-13 | 1 | ******61215 |
| 数学 [数列] | 2026-01-12 | 1 | ******vaje |
| 该题解法 [数列] | 2026-01-12 | 1 | ******996009 |
| 题目解答分析 [数列] | 2026-01-12 | 5 | ******026003855228 |
| 第三问 [数列] | 2026-01-11 | 1 | ******367176187072 |
| 解析 [数列] | 2026-01-11 | 1 | ******85 |
| 见下图 [数列] | 2026-01-08 | 1 | ******016 |
| 见下图 [数列] | 2026-01-08 | 1 | ******016 |
| 数列 [数列] | 2026-01-07 | 1 | ******837913 |
| 这道题 还有裂项相消和错位相减是什么意思 [数列] | 2026-01-05 | 3 | ******478919 |
| 讲讲这题的解题思路，看蒙了。。 [数列] | 2026-01-05 | 3 | ******5 |
