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作者 NCKU 在 PTT [ Math ] 看板的留言(推文), 共16則

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全部Gossiping1948Baseball1280TY_Research864Gov_owned430iOS388Lottery283WorldCup261home-sale123SET114HatePolitics107Olympics_ISG105Tainan86MobileComm78Examination74Tennis67NUU_Talk62NUU_CSIE60FTV52Salary49bicycle44WomenTalk42HBL38NBA38PC_Shopping38Tech_Job32Old-Games31biker24ask22Stock22PushDoll21sex21sky20Lineage16Math16basketballTW15MLB15joke14SENIORHIGH14SportLottery13Militarylife12Railway11CareerPlan9Audiophile8graduate8Hunter8Beauty7Lions7MacShop7AntiVirus6Chiayi6Cobras6Emulator6Post6car5Hate5Instant_Mess5MRT5Physics5PSP-PSV5StupidClown5C_Chat4CMWang4HCHS583184Headphone4Kaohsiung4PublicServan4TaichungBun4Boy-Girl3C_and_CPP3CATCH3FLAT_CLUB3GO3HatePicket3I-Lan3KS94-3023MeatFamily3NDMC-M1073NUU_CHE3TTSH-12th3173You_out3AfterPhD2army_53-2T2Aviation2Broad_Band2CSMU-MED972CYCU_Talk2Dragons2fastfood2FJU2hjsh2ID_Multi2L_SecretGard2LCD2marvel2MenTalk2NDMC-M1052NDMC-N572NDMC-P922NTUBST982NY-Yankees2THULAW2TW_Entertain2WHS-8th3012Yunlin2Army-Sir1army_54-2T1Arti59_1T1ASHS-95RN1ASIA-uni1Bank_Service1Carps1cat1CHSH-96-3101CHU1ck54th3321ck56th3241cksh84th3031CMU_OHET1consumer1CPBL1CSMU-HSA961CSMU-OT961CSMU_PHOTO1cute1CVS1CYCEsoftball1Depstore1Digitalhome1dlsh-7th-3031dragonraja1Economics1Elephants1Employee1FatMonkeys1FCU-INS93B1FishShrimp1FJU-ACC94b1FJU-EE-VLSI1FJU-Stat95A1Football1FSHS-96-3121Hewitt1HotBloodYuan1HPSH-90-31X1Hualien1IM_softball1IVERSON1JasonKidd1Jeremy_Lin1kawaii1KingdomHuang1KS87-3061KS92-3131KS96-3181KS97-3051KS98-3021LeBronJames1love-vegetal1Lun-mei1ManUtd1Marginalman1Master_D1MCU_Talk1media-chaos1Miaoli1MIT1Modchip1NBAEasyChat1NCCU05_BANK1NCCU09_MJOUR1NCCU_SEED1NCHU_CsHsnu1NCKU_ES991NCKU_MEPhC1NCU97ME-B1NCYU_CIVIL961NDHU-His1001NDMC-D621NHCUE-Talk1NightLife1NIU-ECE94b1NKFUST1NSYSU1NSYSU-PE1021NTHU-DSPMT131NTHU_STAT971NTPUyouthCOM1NTUBST991NTUCGM1NTUMEB971NTUST_Talk1Nuggets1NUU_Electric1NUU_Motor1NYUST1Option1PCCU-AT-91C1PingTung1PlayStation1Pool-Beauty1PttHistory1PU_Family1PublicIssue1Road1Sijhih1Starbucks1Storage_Zone1STU1studyteacher1TaiwanDrama1tajen1Teacher1TFSHS58th3251TFSHS61st3211TFSHS66th3071TFSHS69th3071THU_BA20001THU_Talk1THUIM-4th1TigerBlue1TKU_CE94C1TKU_EW94B1Tobacco1Trans-nctu1trans_math1twin1UTAH-JAZZ1Volleyball1Wallpaper1Wanhua1watch1wisdom1YCSH_alumni1YoungDotx31Yuki1Yup02-091YZU_Talk1<< 收起看板(237)

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[微積] 一個疑問

[ Math ]2 留言, 推噓總分: +2

作者: dreamenjoy - 發表於 2015/04/30 21:56(10年前)

1^F推NCKU: sinx^2=sin(x)^2 sin^2x=(sinx)^204/30 22:04

[其他] 1~9隨意排列，除以9都可以整除

[ Math ]3 留言, 推噓總分: +3

作者: revanchism - 發表於 2015/04/30 19:11(10年前)

1^F推NCKU: 各個數字和為9的倍數... 1+2+..+9=45為9的倍數04/30 19:14

[中學] 排列組合?

[ Math ]18 留言, 推噓總分: +5

作者: Acung - 發表於 2015/04/01 20:12(10年前)

1^F推NCKU: 48人用想的就知道了04/01 20:36

5^F推NCKU: 男男女男男女男男..:48人男女男女男..:64人04/01 20:40

7^F→NCKU: 題目出得不好(誤) 有請國文大師解釋04/01 20:41

14^F推NCKU: 該不會是考反應吧 48或64人答案就是A04/01 20:44

[中學] 國中幾何

[ Math ]13 留言, 推噓總分: 0

作者: callmedance - 發表於 2014/01/14 13:50(12年前)

1^F→NCKU:猜答案是D 雖然我不會算但選擇題可以"推"答案01/14 14:02

9^F→NCKU:看選項都在100*1/3附近 (A)(B)(C)<33.33 (D)>33.3301/14 14:39

[其他] 平均速率問題

[ Math ]6 留言, 推噓總分: +1

作者: cg9 - 發表於 2014/01/11 12:59(12年前)

2^F→NCKU:1/(1/100+1/80)=800/9 但你可能看不懂01/11 13:07

3^F→NCKU:那就假設單程400公里所以去花4小時回程花5小時01/11 13:07

5^F→NCKU:總里程400*2=800公里/(4+5)小時 = 800/901/11 13:08

[機統] 簡單機統問題求期望值

[ Math ]6 留言, 推噓總分: +1

作者: jrdontdie - 發表於 2013/09/12 15:12(12年前)

1^F推NCKU:93.7509/12 15:26

[中學] 高一小數轉分數

[ Math ]3 留言, 推噓總分: +2

作者: baby7676 - 發表於 2013/05/06 14:49(12年前)

3^F推NCKU:7/9 + 5/11 = 122/99 7+5+3=1505/06 15:09

[中學] 排列組合

[ Math ]4 留言, 推噓總分: +1

作者: pingche - 發表於 2012/04/19 22:46(13年前)

1^F推NCKU:H(3,8) = C(10,8) = 4504/19 22:53

2^F→NCKU:打錯是H(4,8) = C(11,8) = 16504/19 22:54

Re: [其他] 國中生適合用的數學書

[ Math ]3 留言, 推噓總分: +1

作者: zi6ru04zpgji - 發表於 2011/10/06 22:32(14年前)

1^F推NCKU:尚未公布10/06 00:55

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