作者查詢 / LeonYo
作者 LeonYo 在 PTT [ Math ] 看板的留言(推文), 共122則
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2F推: a的最小值恰為-3/7,x有二重實根0,及二虛根11/23 00:28
3F推: 圓心(-3/2,-1)半徑1/2的圓,不知對否11/23 00:14
4F推: 原來我算的和原po一樣11/23 00:18
5F推: 我用transformation去想,但基本上和原po作法相同11/23 00:20
9F→: 作數學是很需要耐心的10/31 08:56
10F→: 很多學生的耐心在一味求快中被磨得消失殆盡10/31 08:57
14F推: 一般而言,學愈高等數學的人愈覺得無所謂10/27 23:54
15F→: 愈是教年紀小的人愈覺得有所謂,個人心得10/27 23:55
16F→: 有一說是為了怕學生學除法時搞混淆10/27 23:56
8F推: △APQ中,by正弦,得AQ=10sin75度=5(2sin75度)10/06 22:46
9F→: △BPQ中,易得 BQ = 5(√3)10/06 22:46
10F→: △ABQ中,by餘弦,解得AB=5√510/06 22:47
4F→: 我的語文能力太弱了,看不懂以上三位的解釋orz10/04 16:37
5F→: 可以告訴我我舉的那兩個例子各是幾runs嗎,感恩10/04 16:38
4F→: 我的語文能力太弱了,看不懂以上三位的解釋orz10/04 16:37
5F→: 可以告訴我我舉的那兩個例子各是幾runs嗎,感恩10/04 16:38
18F→: 感謝以上各位10/04 18:18
1F推: -1, 1/2, 2 → 1/2, -1, 208/30 19:41
2F→: 應該非唯一解08/30 19:42
5F推: -2, 1, 4 → 1, -2, 408/30 19:44
6F推: 我是解 d = (-3/2) a08/30 19:45
7F推: 或 d = (-3/4)a08/30 20:00
8F→: -1, -1/4, 1/2 → -1, 1/2, -1/408/30 20:00