作者查詢 / mk426375
作者 mk426375 在 PTT [ Math ] 看板的留言(推文), 共190則
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1F推: 簡單畫幾組f,g應該能看出來是錯的04/17 03:24
2F→: 反例隨便找一組f,g讓他們除了在某點函數值相等之外04/17 03:25
3F→: 其他點都是f>g(或f<g)04/17 03:26
1F推: 感謝04/26 10:04
7F推:只是要取約略的話 log(10^9.3)=9+0.3≒log(2*10^9)07/04 10:57
8F→:要準確一點就查表找0.3對應的log07/04 10:58
2F推:原po強者03/20 01:36
1F推:x.z代回原條件可求得t03/17 23:17
5F→:我想說求出來t有二解 帶回去應該會得到兩個tan值@@03/17 23:37
1F推:應該是中間計算錯誤,答案是B沒錯03/17 22:59
2F→:建議你列你算的式子 不然誰看得出來你問題在哪03/17 23:00
9F→:重修吧03/17 22:54
3F推:是說正的可以寫R+ 負的同理用R-表示吧03/16 22:07
1F推:我看的原文書都用小括號03/16 08:03
2F→:不過就線代而言牽涉向量的矩陣形式時通常用中括號03/16 08:05
1F推:u=x^(1/6)?03/03 01:00