| 标题 | 发布时间 | 回答数 | 提问者 |
|---|---|---|---|
| 为什么有2n-3个数 [数列] | 2025-08-08 | 1 | JD1***645 |
| 如图，如何求出方程 [数列] | 2025-08-07 | 1 | a18***694 |
| ③为什么成立 [数列] | 2025-08-06 | 1 | YG1***li2 |
| 他这是不是算错了，算出来是(n-1)平 [数列] | 2025-08-05 | 4 | JD1***443 |
| 这里首项不是三吗？不因该是1+(2n+ [数列] | 2025-08-05 | 2 | JD1***443 |
| 数学 [数列] | 2025-07-31 | 4 | liu***ngA |
| 数列 [数列] | 2025-07-31 | 1 | jde***dqv |
| 数列 [数列] | 2025-07-31 | 1 | jde***dqv |
| 数列 [数列] | 2025-07-29 | 1 | jde***dqv |
| 数列 [数列] | 2025-07-29 | 1 | jde***dqv |
| 老师，看不懂，给精讲一下 [数列] | 2025-07-28 | 1 | pyg***120 |
| 老师，答案最后一行看不懂 [数列] | 2025-07-27 | 1 | pyg***120 |
| 老师，这一步不懂 [数列] | 2025-07-27 | 3 | pyg***120 |
| 啥是个倒序相加 [数列] | 2025-07-27 | 1 | pyg***120 |
| 老师您好 [数列] | 2025-07-26 | 1 | gcq*** |
| 数列 [数列] | 2025-07-25 | 3 | py1***998 |
| 数列 [数列] | 2025-07-25 | 1 | jde***dqv |
| 数列 [数列] | 2025-07-23 | 3 | G18***639 |
| 数学 [数列] | 2025-07-22 | 1 | JD1***806 |
| 数列 [数列] | 2025-07-22 | 1 | jde***dqv |
