| 标题 | 解决时间 | 回答数 | 回答者 |
|---|---|---|---|
| 2020-01-19 | 1 | ||
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| 数列前n项和为sn,a1=2an+1= [数列] | 2020-01-19 | 1 | |
| 错位相减法我算到了-2tn=3乘2+3 [不确定] | 2020-01-19 | 1 | |
| 2020-01-19 | 1 | ||
| 老师可以给我一些专题的题目吗? [方法与资料] | 2020-01-19 | 3 | |
| 2020-01-19 | 1 | ||
| 2020-01-19 | 1 | ||
| 2020-01-19 | 1 | ||
| 2020-01-19 | 1 | ||
| 2020-01-19 | 3 | ||
| 请老师详细写一下图中方法的过程 [解析几何] | 2020-01-19 | 3 | |
| 2020-01-19 | 1 | ||
| 2020-01-19 | 1 | ||
| 2020-01-19 | 1 | ||
| 2020-01-19 | 1 | ||
| 2020-01-19 | 3 | ||
| 2020-01-19 | 1 | ||
| 2020-01-19 | 3 |

