![](https://i.imgur.com/SWuCLdO.jpg)
[問題] 有關國二理化問題求解?
![](https://i.imgur.com/SWuCLdO.jpg)
請問第2題如何解?謝謝大家。
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推
10/11 21:32, , 1F
10/11 21:32, 1F
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10/11 21:33, , 2F
10/11 21:33, 2F
→
10/11 21:33, , 3F
10/11 21:33, 3F
→
10/11 21:33, , 4F
10/11 21:33, 4F
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10/11 21:36, , 5F
10/11 21:36, 5F