作者查詢 / wxtab019
作者 wxtab019 在 PTT [ Math ] 看板的留言(推文), 共281則
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1F→: 50-x-(x*(50-x)/50) 第一次直接扣x 第二次算比例04/15 21:44
1F→: 因為你*那算錯吧04/12 09:07
4F→: 好像是我看錯 抱歉04/12 10:26
1F→: a=c or a=c+104/11 15:44
2F→: 10<x<10004/11 15:45
7F→: 不是都說x>6 為什麼會出現負數開根號的問題?04/11 15:49
8F→: x>6 (x-6)不是>0嗎04/11 15:49
9F→: -1的話 x要=5吧04/11 15:50
1F→: 向量AD=3t向量AB-t向量AC 三點共線 向量AD=AB=AC04/09 19:36
4F→: 說錯了 剛剛沒畫沒注意04/09 21:10
5F→: 不知道那是怎麼算的 不過是有辦法算出AD=1/2AP04/09 21:19
1F→: 2個相同數字有需要連在一起?04/06 19:41
2F→: 直接9個數字取3個 然後看相同數字有沒有需要在一起04/06 19:42
3F→: 再去做排列就好吧 如果要在一起 就是看成3組排列04/06 19:42
4F→: 如果不需要在一起 就2 2 1重複組合排列04/06 19:43
6F→: 看你的想法 應該是一樣的數字不用在一起04/06 19:44
7F→: 然後你的4取2 和剩下兩個會有重複04/06 19:45
2F→: 原來還有這個 不知道都差點要答了04/03 14:03
2F→: 你會算(r^2-x^2)^1.5的微分嗎04/02 21:42
7F→: 直接微分就是我說的那個 你會算嗎 (r^2-x^2)^1.504/03 13:50
8F→: 像你會算x^3微分=3x^2 如果要算x^2積分可以直接算04/03 13:51
1F→: 先不管甲乙丙丁列出所有位置排列 再分甲乙丙丁04/02 21:07
2F→: ((5+4+3+2+1)+(4+3+2+1)+(3+2+1)+(2+1)+1)*4!04/02 21:10
1F→: 1.梯形公式 雖然要解二次方程式03/30 21:14
3F→: 2. 本來是等差 10 S1 S2也會是等差 所以S2+10=2*S103/30 21:17