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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7235則
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2F推: 我覺得可接受。10/03 02:54
1F推: 因為一次往前後左右走一步。10/02 16:36
4F→: 就是9.64e12。你大概是把四捨六入五成雙之類的規則09/28 17:42
5F→: 跟這個混淆了。09/28 17:43
1F→: 解答就在考卷上。09/25 22:25
3F推: 邊長無法求出,可以改變。09/26 00:32
4F→: 只要 |x|<5.5,AD=11-2x,AC=22-x,就是一組解。09/26 00:37
5F→: 你可以設 AC=22-x, AD=11-y 去算算看,會得到 y=2x09/26 00:38
2F→: 漂亮的輔助線!09/25 00:35
1F推: (1)對,但要是特別的曲線才有這性質。(2)要。09/21 21:22
2F→: (3)證明這個跟證明xy>1是open差不多麻煩,你確定要09/21 21:23
3F→: 這樣寫嗎?09/21 21:23
10F推: Galois本來就是憤青。不過那個時空也不意外就是了。09/18 14:59
1F推: 那把你卡住的過程寫下來看看吧。這題證明滿自然的09/14 15:04
2F→: 。09/14 15:04
3F推: surjection就是要找有沒有漏掉的數列,所以每一個09/14 16:41
4F→: 數列都要找到一個子集。injection則是要確保沒有哪09/14 16:41
5F→: 一個數列被集火,所以假設f(A)=f(B)之後必須得到A09/14 16:41
6F→: =B。09/14 16:41
1F→: 把 p,q 用 a,b,c 換掉。09/12 10:28