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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7170則
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1F推: x^p,你自己挑一下積分範圍和p。10/05 14:09
1F推: 角尺畫圓可以用對著半圓的圓周角=直角去畫吧。10/04 13:41
1F推: 乘以這個:「x-c的極限」。10/01 17:29
4F推: 第四題先把白圈十位個位交換再相加。10/01 17:07
5F→: 不過這種規律題……只要能湊出來就都是規律= =10/01 17:07
2F推: 前兩項拿去和差化積,直接把x+y、x-y當成獨立的變09/30 07:36
3F→: 數算就好。09/30 07:36
7F→: 然後就能確認 cos(x-y) 的最小值是 1/2。09/30 15:07
8F推: (x^2+9)^2 - (4√2 x)^2 可以繞過複數平方根。09/30 15:06
6F推: 首先你應該捨棄向來二字。09/28 12:31
5F推: 對啊,沒有整數根。還想解就只能用卡當公式了。09/27 19:45
1F推: 你的用法裡面,單位=單位量。應該是這樣吧?09/27 17:30
7F推: 把10記為u這個單位,那1就是du這個單位。09/27 18:13
8F→: 所以15就是15du=1u5du。09/27 18:13
2F推: 你只看前n個質數不夠啊。2*5*7*11*13=10010,要檢查09/15 14:41
3F→: 的質因數還很多哩。09/15 14:41