[問題] 兩題數學
1 1 8:07:28 2011
下列兩題對各位大大而言應該蠻簡單的
可是我不會ㄟ~~~~~
(1)設-6、a、b三數成等差數列,而a、b、54三數成等比數列
求a、b之值.
(2)設a、b、c既是"等差數列"亦是"等比數列",試證a=b=c.
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◆ From: 118.166.173.234
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07/01 18:12, , 1F
07/01 18:12, 1F
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07/01 18:14, , 2F
07/01 18:14, 2F
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07/01 18:14, , 3F
07/01 18:14, 3F
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07/01 18:14, , 4F
07/01 18:14, 4F
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07/01 18:20, , 5F
07/01 18:20, 5F
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07/01 18:23, , 6F
07/01 18:23, 6F
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07/01 18:43, , 7F
07/01 18:43, 7F
推
07/01 19:37, , 8F
07/01 19:37, 8F
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07/01 19:59, , 9F
07/01 19:59, 9F
※ 編輯: weakchiken 來自: 118.166.174.110 (07/01 20:26)
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07/01 20:27, , 10F
07/01 20:27, 10F
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07/01 20:29, , 11F
07/01 20:29, 11F
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07/01 20:36, , 12F
07/01 20:36, 12F
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07/01 21:13, , 13F
07/01 21:13, 13F
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