
[請益] 數學一題

一直想不到該如何切入
拜託大家幫忙了
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01/23 22:23, , 1F
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01/23 22:29, , 2F
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01/23 22:29, , 3F
01/23 22:29, 3F
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01/23 22:30, , 4F
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01/23 22:31, , 5F
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01/23 22:32, , 6F
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01/23 22:33, , 7F
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01/23 22:35, , 9F
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01/23 22:36, , 10F
01/23 22:36, 10F
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01/23 22:44, , 11F
01/23 22:44, 11F

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01/23 22:46, , 12F
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01/23 22:58, , 13F
01/23 22:58, 13F
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01/23 22:59, , 14F
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01/23 23:00, , 15F
01/23 23:00, 15F
喔喔!!!!!! 我懂了 感謝各位
※ 編輯: braja5566 (114.40.175.172), 01/23/2015 23:10:51
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01/24 17:36, , 16F
01/24 17:36, 16F
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01/25 11:17, , 17F
01/25 11:17, 17F
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