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作者 Ertkkpoo 在 PTT [ Math ] 看板的留言(推文), 共167則

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[中學] TRML問題

[ Math ]6 留言, 推噓總分: +2

作者: Ertkkpoo - 發表於 2016/08/31 22:19(9年前)

4^F→Ertkkpoo: 喔喔有討論串，那我知道1,3題了，謝謝!08/31 23:45

5^F→Ertkkpoo: 謝謝大家第二題我自己算出來了08/31 23:50

Re: [其他] 學生問你為何學數學?

[ Math ]24 留言, 推噓總分: +9

作者: doom8199 - 發表於 2013/12/28 12:43(12年前)

9^F推Ertkkpoo:很久沒看到卡修大來PO文了12/28 17:39

[其他] 三條橫槓代表意義?

[ Math ]15 留言, 推噓總分: +5

作者: snecma - 發表於 2013/03/19 13:27(13年前)

6^F推Ertkkpoo:三階的tensor03/19 18:59

Re: [中學] 面積

[ Math ]3 留言, 推噓總分: +3

作者: mack - 發表於 2013/02/09 01:18(13年前)

2^F推Ertkkpoo:因為對稱，會有不同弓形抵銷，只剩下中間長方形02/09 01:50

Re: [中學] 幾何證明

[ Math ]2 留言, 推噓總分: +1

作者: bn51401 - 發表於 2013/02/04 12:23(13年前)

2^F推Ertkkpoo:太感謝各位大大的幫忙了!!02/04 18:49

[中學] 幾何證明

[ Math ]17 留言, 推噓總分: +4

作者: Ertkkpoo - 發表於 2013/02/04 00:28(13年前)

9^F→Ertkkpoo:原來題目少條件，難怪我想很久都想不出來，感謝2位!!02/04 09:39

10^F→Ertkkpoo:不過為何只要AB=BF=X，就保證AB//CF?02/04 09:47

益智

[ Math ]18 留言, 推噓總分: +1

作者: snaredrum - 發表於 2012/12/09 13:44(13年前)

12^F推Ertkkpoo:可以請問2瓶水是指丟2瓶=算1次測試嗎?12/09 15:45

[中學] 圓與弦

[ Math ]3 留言, 推噓總分: +1

作者: ccccc7784 - 發表於 2012/10/22 16:13(13年前)

1^F推Ertkkpoo:把圖畫出來，然後做輔助線，用商高，得半徑10/22 16:35

[其他] Tensor operate

[ Math ]12 留言, 推噓總分: +2

作者: ntust661 - 發表於 2012/10/22 16:04(13年前)

1^F推Ertkkpoo:δ11 + δ22 + δ33=δee=310/22 16:30

2^F→Ertkkpoo:1. 你只要把任意向量拆成正交的分量，就可以用δkp10/22 16:32

3^F推Ertkkpoo:δi1 δi1=δ11 δ11+δ21 δ21+δ31 δ31=110/22 16:39

[中學] 資優班題目數題

[ Math ]27 留言, 推噓總分: +3

作者: KLEAN - 發表於 2012/10/21 22:51(13年前)

2^F推Ertkkpoo:4. 商高+利用邊長比得到角平分線=AE 選B10/21 23:10

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