作者查詢 / DLHZ
作者 DLHZ 在 PTT [ Math ] 看板的留言(推文), 共362則
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18F推: 秘書問題09/14 08:44
1F推: 強者推08/17 22:50
4F推: 可以想像成1000a^2+550a+605=0 然後就可以帶公式解08/13 13:50
5F→: 找出a了 其中a=x+1 所以a多少x就是a-108/13 13:50
6F→: 那個式子是兩邊同乘(a+1)^2後再移項得到的08/13 13:52
8F推: 沒人貼genius06/19 11:12
1F推: 真是好人05/31 01:14
5F推: u=2x+105/03 11:59
6F→: 第二題就integration by part吧05/03 12:01
8F→: 看錯了 第三題也是integration by part05/03 12:19
9F推: 我要說的是第四題不是第二題 反正就是三四都ibp05/03 12:48