作者查詢 / G41271
作者 G41271 在 PTT [ Math ] 看板的留言(推文), 共675則
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19F推: 答案要用反三角函數表示,只用pi無法表示,所以不可04/18 03:28
20F→: 能用國中方法算04/18 03:28
2F推: 你得先了解θ是怎麼取的06/12 17:24
1F推: 感謝哦,寫得很詳細,還特別修文改漏洞,我有看到你06/03 16:30
2F→: c改成δ. 因為週末比較忙, 所以現在才推文06/03 16:31
3F→: 我一開始直接展開,就變成要處理lnx/x^n的級數06/03 16:33
4F→: 雖然每項都趨於零,但有無窮項,無法證出加總等於零06/03 16:34
5F→: 均值定理避免了這問題, 感謝~06/03 16:35
6F→: 夾擠則是讓證明簡化了許多06/03 16:35
1F推: 真的可以這樣寫?06/01 12:07
10F推: 因為那一串就等於1/x啊05/31 17:30
11F→: 你不覺得12和√的那一長串長得和1/x一樣嗎05/31 17:32
12F→: 同樣,6的那一串長得和上面的x一樣05/31 17:33
5F→: 一樓,證明不能直接寫無視吧XD05/31 13:13
6F→: 4樓的似乎可以,感謝~05/31 13:39
3F推: 分部積分: 令lnu=U, du=dV, 則∫UdV=UV-∫VdU05/29 16:27
4F→: 你要考工數的話, 我建議你把lnu的積分背下來05/29 16:29
6F推: 我看圖明明就是寫sin05/27 15:10
7F→: 用和角公式解釋如何,殺雞用個牛刀05/27 15:11
1F推: 可用參數式硬解05/22 16:49
2F→: 或者向量展開:向量式PQ=PA+AB+BQ, 再兩邊平方05/22 17:38
7F推: 交錯基數審查法是?05/21 18:57