![](https://i.imgur.com/iP8VNCc.jpg)
[中學] 請教一下這2題數學
![](https://i.imgur.com/iP8VNCc.jpg)
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推
12/31 11:41,
3年前
, 1F
12/31 11:41, 1F
→
12/31 13:38,
3年前
, 2F
12/31 13:38, 2F
→
12/31 17:13,
3年前
, 3F
12/31 17:13, 3F
→
12/31 17:24,
3年前
, 4F
12/31 17:24, 4F
→
12/31 17:24,
3年前
, 5F
12/31 17:24, 5F
→
12/31 17:24,
3年前
, 6F
12/31 17:24, 6F
推
12/31 23:12,
3年前
, 7F
12/31 23:12, 7F
![](https://i.imgur.com/nsmmjlz.jpg)
→
01/01 02:17,
4年前
, 8F
01/01 02:17, 8F