[代數] 屬於有理數不為0
某個數字
我想說它屬於Q不為0
應該說 Q/{0}
還是 Q-{0}
謝謝
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06/16 15:44, , 1F
06/16 15:44, 1F
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06/16 15:45, , 2F
06/16 15:45, 2F
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06/16 15:45, , 3F
06/16 15:45, 3F
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06/16 15:46, , 4F
06/16 15:46, 4F
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06/16 15:47, , 5F
06/16 15:47, 5F
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06/16 15:47, , 6F
06/16 15:47, 6F
推
06/16 15:48, , 7F
06/16 15:48, 7F
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06/16 15:48, , 8F
06/16 15:48, 8F
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06/16 15:50, , 9F
06/16 15:50, 9F
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06/16 15:51, , 10F
06/16 15:51, 10F
推
06/16 15:53, , 11F
06/16 15:53, 11F
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06/16 15:58, , 12F
06/16 15:58, 12F
推
06/16 16:09, , 13F
06/16 16:09, 13F
推
06/16 23:06, , 14F
06/16 23:06, 14F
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06/19 21:50, , 15F
06/19 21:50, 15F
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