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收起看板(512)

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[代數] 請問有理數，化成循環小數

[ Math ]31 留言, 推噓總分: +4

作者: rfvbgtsport - 發表於 2020/09/15 11:48(5年前)

1^F推doa2: 循環節不會超過16，也就是n-109/15 12:28

[中學] 相關係數

[ Math ]36 留言, 推噓總分: +13

作者: bpall - 發表於 2020/08/19 13:09(5年前)

32^F推doa2: https://i.imgur.com/AvFCWlV.jpg08/19 17:14

33^F→doa2: https://i.imgur.com/tUZMV4T.jpg08/19 17:15

34^F推doa2: 類題的算法，不過高一還沒學sigma...08/19 17:17

36^F推doa2: 新課綱改到高三去囉08/20 06:37

[中學] 中一中資優班考題

[ Math ]5 留言, 推噓總分: +2

作者: CBH - 發表於 2020/07/23 18:59(5年前)

4^F推doa2: https://i.imgur.com/jP5hw9U.jpg07/23 23:10

5^F→doa2: 任選不相鄰的數字，最多可選6個07/23 23:10

這題有解嗎？

[ Math ]11 留言, 推噓總分: +3

作者: WWEAR - 發表於 2020/07/11 07:07(5年前)

1^F推doa2: 9+(1+2+2+4)*(12*3)=33307/11 07:21

[中學] 餘式定理和遞迴

[ Math ]20 留言, 推噓總分: +7

作者: Beiloin - 發表於 2020/07/10 23:51(5年前)

9^F推doa2: 第二題其實從0次項逆著除回來就可以了07/11 01:54

[中學] 請教一題排列組合

[ Math ]6 留言, 推噓總分: +5

作者: yizihappyQ - 發表於 2020/07/06 10:55(5年前)

2^F推doa2: 3！*3！*2^3/2^3=3607/06 15:51

[中學] 請問1=2嗎

[ Math ]12 留言, 推噓總分: +3

作者: china2025 - 發表於 2020/06/14 15:38(5年前)

2^F→doa2: 請問taiwan=china嗎06/14 16:23

Re: [幾何] 求證圓與直線關係

[ Math ]3 留言, 推噓總分: +2

作者: knuk - 發表於 2020/06/01 07:33(5年前)

1^F推doa2: 從面積比下手06/01 08:18

2^F推doa2: 呃剛剛試寫一下，好像是PQ+PR為定值06/01 08:27

[中學] 請問集合

[ Math ]6 留言, 推噓總分: +3

作者: jenshi - 發表於 2020/05/31 06:06(5年前)

1^F推doa2: 是學測手機和平板那題嗎？05/31 06:36

[數論] 國安局兩題考題

[ Math ]44 留言, 推噓總分: +14

作者: preed - 發表於 2020/05/12 16:28(5年前)

32^F推doa2: 我是有修過電機系開的密碼學，都在教數論05/12 22:31

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