This question is not clear,but your ai+bi+ci=0 is not right.ai+bi+ci=i+1.
回複:回複:回複:Let me try
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master jinjing不得了。數學頂瓜瓜,提琴也會拉:)
-戲雨飛鷹-
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01/15/2010 postreply
18:42:08