![](https://i.imgur.com/m3n0KZA.jpg)
[中學] 國二等差級數
![](https://i.imgur.com/m3n0KZA.jpg)
不太懂該如何算
是怎麼歸納出規律的...
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 106.104.82.215
※ 文章網址: https://www.ptt.cc/bbs/Math/M.1457185562.A.E75.html
推
03/05 21:50, , 1F
03/05 21:50, 1F
→
03/05 21:51, , 2F
03/05 21:51, 2F
→
03/05 21:51, , 3F
03/05 21:51, 3F
推
03/06 03:51, , 4F
03/06 03:51, 4F
→
03/06 03:51, , 5F
03/06 03:51, 5F
→
03/06 03:52, , 6F
03/06 03:52, 6F
→
03/06 03:53, , 7F
03/06 03:53, 7F
→
03/06 03:54, , 8F
03/06 03:54, 8F
→
03/06 03:58, , 9F
03/06 03:58, 9F
→
03/06 17:02, , 10F
03/06 17:02, 10F
討論串 (同標題文章)