![](https://i.imgur.com/o9pNsI5.jpg)
[微積] 大一數學 求極限
![](https://i.imgur.com/o9pNsI5.jpg)
請問第二行到第三行是怎麼來的
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→
10/14 12:44, , 1F
10/14 12:44, 1F
→
10/14 12:45, , 2F
10/14 12:45, 2F
→
10/14 12:45, , 3F
10/14 12:45, 3F
→
10/14 12:47, , 4F
10/14 12:47, 4F
→
10/14 13:08, , 5F
10/14 13:08, 5F
推
10/14 19:46, , 6F
10/14 19:46, 6F