
[中學] 求解向量問題

各位大大有沒有人可以幫忙
求解(C)、(E)選項為什麼是錯的
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03/22 20:43, , 1F
03/22 20:43, 1F
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03/22 20:43, , 2F
03/22 20:43, 2F
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03/22 20:50, , 3F
03/22 20:50, 3F
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03/22 20:52, , 4F
03/22 20:52, 4F
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03/22 21:05, , 5F
03/22 21:05, 5F
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03/22 21:05, , 6F
03/22 21:05, 6F
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03/22 22:38, , 7F
03/22 22:38, 7F
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03/22 22:38, , 8F
03/22 22:38, 8F
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03/22 23:14, , 9F
03/22 23:14, 9F