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16F推:原po指考戰士XD05/07 23:09
13F推:我的想法是看a^2+b^2的質因數分解是不是若干個高斯質04/30 01:09
14F→:數的乘積04/30 01:09
1F→:答案是1234嗎04/26 16:50
8F推:推這篇04/25 13:53
40F推:去掉(1,0)(-1,0)後用隱函數定理啊XD(誤04/14 00:49
5F推:突然好佩服Weierstrass XD04/08 02:15
5F推:推這篇04/05 21:35
10F推:什麼叫無限個9後是8?04/02 00:49
20F推:無限個9就是小數點後"所有"位數都是904/02 00:55
1F→:一樣可以用公式解03/29 16:19
4F推:在你那個集合挑一個收斂點列收斂到x*,去證明f(x*)=003/28 00:52