作者查詢 / keith291
作者 keith291 在 PTT 全部看板的留言(推文), 共8271則
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9F→: 過了快兩個禮拜 請問之前回覆的信件有下文嗎04/04 15:48
1F→: 用cos 2倍角公式把括號換成sin平方 再用(sinx)/x03/20 15:40
2F→: x趨近0的結果為1去算03/20 15:41
1F→: 先學會推文好嗎10/17 00:42
1F推: 是 寫錯了10/05 00:19
4F→: x正或負 不等號左右要放不一樣的東西才成立10/05 21:12
5F→: 當x<0時 那行根本是錯的 左和右極限要分情況討論10/05 21:14
6F→: 雙邊極限才可以求出來 不想這麼麻煩就要掛絕對值10/05 21:15
1F→: sinA+sinB > sinC ≧sinC10/05 13:39
9F→: 過了快兩個禮拜 請問之前回覆的信件有下文嗎04/04 15:48
6F→: 1F 是 6^2 "+" 6*2 才對吧10/01 15:58
1F→: 你還沒學到L'Hospital's rule 可以直接約掉公因式解09/19 17:11
2F→: 上下都有 y^1/6 - 2 這因式09/19 17:13
3F→: 用一個你不知道原理的算法算出答案只是抄答案沒意義09/19 17:14
1F→: http://bfy.tw/JqrG09/13 00:28
2F→: 答案1/409/13 00:29