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[解題] 高二數學圓錐曲線

[ tutor ]11 留言, 推噓總分: +1

作者: etno3 - 發表於 2014/05/12 13:01(11年前)

3^F→etno3:還是不懂耶,我的想法是:因為拋物線和圓都在x軸上,所以會如圖05/12 13:55

4^F→etno3:http://imgur.com/jnmQqVC 這樣子的兩個交點05/12 13:55

5^F→etno3:然後這兩個交點的x座標相等 => 重根05/12 13:56

11^F→etno3:嗯,其實就是對稱軸為x軸,頂點(-1,0)05/12 15:27

Re: [解題] 圓錐曲線

[ tutor ]1 留言, 推噓總分: +1

作者: vvbird - 發表於 2010/03/14 10:54(16年前)

1^F推etno3:感謝03/14 11:18

[解題] 高一數學複數

[ tutor ]2 留言, 推噓總分: 0

作者: etno3 - 發表於 2008/07/09 19:26(17年前)

2^F→etno3:感謝!07/09 19:47

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