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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7170則
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5F→:「每天三餐都要攝取六大類營養素」怎麼解讀呢?05/01 23:59
6F→:早餐只喝水,午餐吞維他命,晚餐把剩下的補足...嗎?05/02 00:00
9F→:隨便來一個大定理的證明就好了吧XD05/02 17:10
11F→:別去想交點個數了...05/02 11:57
2F→:硬要給它個名字的話,旁切球。04/29 13:29
1F→:沒有同時喔...那是「或」04/29 13:01
3F→:解答說的是「得到這個平面及那個平面」04/29 13:03
1F→:Z是用了均值定理,如果寫μ的話Q豈不變成二次函數了04/29 12:49
3F→:話說應該是Q(x)>Q(μ)+Q'(μ)(x-μ)吧04/29 12:51
4F→:嗯,就是x,μ之間04/29 15:29
3F→:有啊。輔助線畫一畫,很方便的。04/29 18:09
17F→:說實話...這些東西google一下或者wiki一下很簡單的04/27 21:23
18F→:你光花在打字上的時間就夠你弄懂了04/27 21:23
19F→:再說,這是高中的東西,就算翻課本出來看也能搞懂04/27 21:23
1F→:有啊,u=0就是一個。而且...04/27 01:58
2F→:啊...對不起,u=0不是解。答案應該是「不存在」才對04/27 02:01
3F→:你需要的是maximum principle04/27 02:01
6F→:也可以不要討論...三個角度數分別是x,156-2x,x+2404/26 19:29
8F→:解不等式0<x<=156-2x<=x+24<180得44<=x<=5204/26 19:33
9F→:角度最小就是44度,最大就是76度了04/26 19:34
10F→:最後得104<=n<=13604/26 19:34
15F→:設最小角為x度,最大角當然就是x+24度了,剩下那個...04/26 19:38