作者查詢 / FAlin
作者 FAlin 在 PTT [ Math ] 看板的留言(推文), 共293則
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1F→: 直接展開用算幾並不會太慢09/01 09:41
1F→: 8. 前面三組,後面只有兩組(少負的)08/28 21:04
2F→: 10. 要考慮a的區間 1 < a < e^(e/1)(約1.44) 兩組08/28 21:06
2F推: 幫補條件「角C=90度」 這題是模考08/11 12:56
5F→: 補習班老師給錯啦~08/12 12:38
6F推: 姿勢+ http://tinyurl.com/haxq4g2 不過底下答案08/12 12:45
7F→: 不太好08/12 12:45
1F→: sinθ*sin(60+θ)*sin(60-θ)=(sin3θ)/408/09 12:02
6F推: 畫圖+1 混合函數高中不會解出來 a<b<c07/28 12:46
3F推: 回樓上,兩邊加k,倒數,右式提出1/k才能產生07/26 09:56
4F→: 1/(a_n+1) = 常數 + 1/(a_n-1+1)*k07/26 09:56
5F→: 目標是配成分母都是 an + "相同常數"07/26 09:57
2F→: 以7來說 1 1 1 1 1 1 1 空格可填+可不填+07/16 17:53
3F→: 1+1 1 1 1+1 1 相當於 2 1 1 2 107/16 17:54
1F推: 重複組合 用H去想06/18 13:12
1F推: 24 AE*AE=AD*AB 就能解了06/09 19:48