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作者 itsweb 在 PTT [ tutor ] 看板的留言(推文), 共104則
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2F推:96單選1(第四名) XD04/02 01:10
2F推:電梯那題之外 哪題可以窮舉阿orz03/31 00:34
1F推:我覺得題目很棒欸~ 也不是那種難到無法下手的那種03/27 01:08
2F→:死背解法的會很慘03/27 01:08
1F推:也可以寫成 a(n)-k=(2/3)[a(n-1)-k] 先算出k 令bn=an-k03/07 15:12
2F→:bn等比03/07 15:12
1F推:虛實數方程式有實根作法一律都是 假設實根k 帶入02/17 18:56
2F→:複 數 然後分離實部虛部match //所以都是002/17 18:57
3F→:b的話 假設F(x)=q(x)(x-1)(x-2)^2+a(x-2)^2+(2x+1)02/17 18:58
4F→:帶入F(1)求取a02/17 18:58
5F→:把2x+1之外的都看成(x-2)^2的商02/17 18:59
13F推:第四題的x y平均都相同 x標準差也相同01/28 16:30
14F→:所以r就看 乘積的平均/y的標準差01/28 16:31
60F推:可以借文章文d大出的模考題 手機密碼那題怎麼思考嗎XD01/28 16:28
1F推:想問沒有智慧型手機怎麼用電腦的line??12/29 18:44
1F推:最後一題我算4/7欸~12/18 14:51
2F推:結果再算一次是2/5應該沒錯~12/18 15:33
7F推:要考慮t的範圍這樣11/27 13:52