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[中學] 高中虛數

[ Math ]10 留言, 推噓總分: +1

作者: ck940560 - 發表於 2014/11/08 18:12(11年前)

7^F→ck940560: 咦根與係數直覺應該是正解...我來試試看11/08 19:28

8^F→ck940560: 驗算過也沒問題感謝各位的解答11/08 19:34

10^F→ck940560: 對耶= = 我把他想得太複雜了...忘了最簡單的方法11/09 15:26

[中學] 建中科學班101年三-1.-(2)

[ Math ]5 留言, 推噓總分: +1

作者: ck940560 - 發表於 2014/01/21 04:05(12年前)

2^F→ck940560:AOCE四點共圓可以理解請問D點是如何判斷也在圓上?01/21 11:12

3^F→ck940560:噢我發現了囗ADOC中，ㄥDAC=弧BC/2=ㄥFOC01/21 11:17

4^F→ck940560:ㄥDAC+ㄥDOC=180度所以ADOC為圓內接四邊型01/21 11:18

5^F→ck940560:感謝指教01/21 11:19

[中學] 國中代數 (已解決)

[ Math ]6 留言, 推噓總分: +3

作者: ck940560 - 發表於 2013/09/16 00:22(12年前)

3^F→ck940560:不曉得答案是多少ˊˋ 不然可能還有辦法倒推09/16 00:56

4^F→ck940560:懂了感謝XII大09/16 01:10

Re: [中學] 國中幾何學

[ Math ]2 留言, 推噓總分: +2

作者: FocusE - 發表於 2013/02/16 16:17(13年前)

2^F推ck940560:謝謝這樣的解法更完整02/16 21:09

[中學] 國中幾何學

[ Math ]7 留言, 推噓總分: +3

作者: ck940560 - 發表於 2013/02/16 14:14(13年前)

1^F→ck940560:http://ppt.cc/ftfR 自己解出來了....囧02/16 15:14

3^F→ck940560:因為我發現AB不管是哪條弦都不影響題目給的條件02/16 17:50

4^F→ck940560:要證明可能就先證明AB位置不影響吧02/16 17:51

Re: [中學] Log的問題

[ Math ]3 留言, 推噓總分: 0

作者: n19860423 - 發表於 2012/12/31 01:48(13年前)

1^F→ck940560:謝謝~ 我乘開後根與係數一直糾結在常數項12/31 02:33

2^F→ck940560:都忘記一次項幾乎就是答案了12/31 02:33

3^F→ck940560:不過laga+logb應該是－(log3+log5) 那答案就是1/15了12/31 02:36

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