作者查詢 / kniver999
作者 kniver999 在 PTT [ Math ] 看板的留言(推文), 共34則
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4F→:第一題您說的線上一點是哪條線上的呢?05/17 22:28
6F→:所以是要求兩個平面的交點嗎05/17 22:31
13F→:3x-5z=1怎麼變成(x,z)=(5t+1/3,3t)的參數式@@?05/17 23:15
15F→:那z的3t是怎麼來的呢@@?05/18 00:13
18F→:第2題我會了 第1題我再想想看 謝謝你05/18 08:34
3F→:我會了,謝謝05/11 00:01
3F→:我會了 謝謝你04/03 19:53
7F→:要怎麼用三角代換變成那樣?03/23 23:00
11F→:我會了 謝謝03/23 23:53
3F→:我用u=(x-1)^1/3令完會變成3倍積分u^4/u^2+3 du03/18 20:31
4F→:接下來要用u^4去除u^2+3?03/18 20:32
7F→:謝謝 我會了03/18 20:52
8F→:那後面那串9/(3+u^2)要怎麼處理?03/18 20:59
4F→:下面的π/4 微分掉會變成0嗎?12/31 09:03
5F→:分子是sin的平方12/31 09:05
7F→:我會算了 謝謝12/31 12:34
1F推:非常感謝你~12/11 20:04
2F推:我研究一下,謝謝你10/30 14:09
1F推:我了解了,謝謝你10/23 17:37
2F推:另外我看到的答案有個t屬於[0,2拍) 這要怎麼看?10/23 17:43
4F推:我不懂為什麼t不包含2拍10/23 17:49
8F推:噢噢 謝謝10/23 17:55
3F→:第一題我試著畫圖 但是越畫越亂= =10/23 17:30
4F→:另外有一題->試將方程式X^3+Y^3=3XY改為參數式10/23 18:52
5F→:不知道怎麼弄@@10/23 18:52
8F→:是把X或Y設成T?10/23 19:08
10F→:@@?10/23 19:12
15F→:維基上的做法感覺跳好快= = 看不太懂他在幹嘛10/23 21:02
21F→:x!=0這個是怎麼來的?10/23 21:06
23F→:我以為是X階 XDDD10/23 21:15
24F→:大致上了解了 謝謝各位的解答10/23 21:20