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作者 emptie 在 PTT [ Math ] 看板的留言(推文), 共270則

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[中學] 過某點的直線方程式，最小值問題

[ Math ]6 留言, 推噓總分: +2

作者: toba - 發表於 2021/07/10 13:53(2年前)

5^F推emptie: https://math.stackexchange.com/a/264289407/11 11:56

澳洲AMC 小五試題求解！

[ Math ]12 留言, 推噓總分: +3

作者: oddesy - 發表於 2021/07/08 00:02(2年前)

9^F推emptie: 所以才有要連結對邊的限制條件啊07/08 09:14

[中學] 根號問題請益

[ Math ]8 留言, 推噓總分: +4

作者: fivechess - 發表於 2021/06/26 20:53(2年前)

4^F推emptie: 這表達式應該已經很乾淨了06/27 10:49

[中學] 循環小數有理數

[ Math ]3 留言, 推噓總分: +1

作者: zyz - 發表於 2021/06/27 00:34(2年前)

1^F推emptie: https://i.imgur.com/JPHHx3s.png06/27 00:48

[幾何] 國中幾何兩題請教

[ Math ]2 留言, 推噓總分: +2

作者: fivechess - 發表於 2021/06/22 17:46(2年前)

1^F推emptie: 1 連接DB ，BFDH的面積應為ABCD的1/206/23 01:29

[幾何] 請問一題國中幾何

[ Math ]40 留言, 推噓總分: +5

作者: jenshi - 發表於 2021/06/05 07:39(2年前)

1^F推emptie: https://i.imgur.com/Ooi6870.jpg06/05 08:38

2^F→emptie: 橘色是橋，x:y=a:b 的時候距離最短06/05 08:38

[中學] 小學IMC競賽題

[ Math ]9 留言, 推噓總分: +5

作者: TwIsAcountry - 發表於 2021/06/04 14:46(2年前)

2^F推emptie: 第一題我覺得乘上100估計十位數比較快06/04 14:57

5^F→emptie: 其實就跟直接算差不多只是想說整數比較好理解06/04 15:00

[中學] 八年級數學問題

[ Math ]8 留言, 推噓總分: +3

作者: bpall - 發表於 2021/05/31 18:31(3年前)

1^F推emptie: 1. AFD CFD全等05/31 18:47

4^F推emptie: https://i.imgur.com/CeaRfQJ.jpg05/31 19:21

5^F→emptie: 把ABC翻轉以後可以形成新的等腰三角形頂角=80+12605/31 19:22

6^F→emptie: *80+46 = 126 ，底角E = 2705/31 19:23

[中學] 三心

[ Math ]18 留言, 推噓總分: +4

作者: QQLeopard - 發表於 2021/05/16 21:27(3年前)

16^F推emptie: https://i.imgur.com/vLw6dia.jpg05/17 18:31

17^F→emptie: 畫成圖大概是這樣05/17 18:32

國中

[ Math ]6 留言, 推噓總分: +2

作者: QQLeopard - 發表於 2021/05/15 21:51(3年前)

1^F推emptie: 直切m刀橫切n刀 (m-1)(n-1)=60 m+n<2005/16 03:28

2^F→emptie: (6,13) (7,11) (11,7) (13,6) 4種05/16 03:30

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