假設a > 1,
a=1可以化a > 1的例子。。。
回複:回複:伊朗奧賽題:完全方數的等差級數(3.5星)
本帖於 2009-03-18 18:54:37 時間, 由普通用戶 康MM 編輯
假設a > 1,
a=1可以化a > 1的例子。。。
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