![](https://i.imgur.com/3jza1GT.jpg)
[中學] 2題空間向量請教(證明、選擇)
![](https://i.imgur.com/3jza1GT.jpg)
![](https://i.imgur.com/ql1RuLQ.jpg)
不知該如何下筆,想請教站上大師指點方向,感謝您,謝謝您,謝謝~
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※ 編輯: nokol (180.204.134.37), 01/29/2016 15:14:13
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