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作者 thisday 在 PTT [ Math ] 看板的留言(推文), 共559則
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全部Celtics779Math559Badminton396BB_Online317NTU239Hunter225NTUcourse198teeth_salon185ONE_PIECE135NARUTO92NtuDormM376NTUMath-bad54Suckcomic44PHX-Suns43hikarugo27basketballTW23Cobras21kochikame20Baseball19NBA19Conan18graduate18NTU-Exam17Just_a_name15KS98-30214Olympics_ISG13NTUMath9811LoL10RayAllen9movie8Sucknovels8Gossiping6NBA_Film6CHSH_98_3195NtuDormM15NTUDormM75ChangHua4juniorhigh4MiamiHeat4NTULibrary4SENIORHIGH4CVS3Guardians3Isayama3LeBronJames3MAJOR3NTUMath993Facebook2INSECT-982KevinGarnett2Little-Games2NTUCGM2NtuDormF22NtuDormF32NTUDormFJr2NtuDormM52NTUDormM62NtuDormM82NTUF-002NTUHORTI982NTUMath1002NTUPPM-992oeo_492PACERS2specialman2trans_math2ADS1AGEC991Agronomy-971AIR_JORDAN1AskBoard1b002040XX1B003021XX1B00305XXX1b00902xxx1b04902xxx1B92A011XX1B97A013XX1B981010XX1B983022XX1B98A013XX1b992040XX1B99303XXX1B99305XXX1b99902xxx1balaz1BLAZERS1C_Chat1CCF1CGSH86th3121ChuLinNTU1ck61st3051CourtBasketB1e-coupon1Education1Elephants1Free_box1FSS1Garena1GTO1GuardRookies1HCKuo1historia1Ichiro1INSECT-001INSECT-961joke1LitService1logic1Mavericks1ME_BADMINTON1MenTalk1MLB1MOD1Monkeys1NBA_Fantasy1NBAEasyChat1NCCU10_BANK1NCHU_ITM981Nets1NTU09DFLL1NTU_Service1NtuBaChi1NTUBIME-1031NTUBIME-1041NTUBP-R1001NTUBSE-B-1001NTUBSE-B-991NTUBST981NTUBST991NTUCB1NTUCH-1031NTUdent971NtuDormF61NtuDormM21NtuDormM41NTUDrama001NTUEE1121NTUEE1141NTUEE1151NTUF-981NTUF-991NTUHistory981NTUHorti961NTUHorti971NTUIM-191NTUIMM991NTUJapan101NTUJapan111NTUMEB001NTUMEB991NTUmed001NTUMT-001NTUMT-991NTUND981NTUPPM-971NTUPPM-981NTUST_Talk1Old-Games1PF_Badminton1PH-1001Philo-101Psychology041PublicHealth1puzzle1RIPE_gender1sex1sky1Sorry_Youth1SP2_Basket1Spurs1Teacher1tennisprince1Thunder1Tigers1TKU_EE_92C1TNFSH92191Transport1001TWvoice1TYJH_92_ENG1VET_1001VET_981VET_991<< 收起看板(183)
1F→:20/704/24 13:50
3F→:繼續化平行線 變成三個平行四邊形(菱形)04/24 14:40
5F→:然後用科西就完了04/24 13:36
7F→:(x+y)(y+z)(z+x)>=8xyz04/24 14:41
8F→:(x+y)=(x^1/3)^3+(y^1/3)^304/24 14:41
9F→:三式乘再一起()()()>=(xyz^1/3+xyz^1/3)^3=8xyz04/24 14:43
7F推:樓上給我了靈感!! 先算最衰的情況 選六個號碼都沒中.04/23 23:56
8F→:再來算只中一個號碼的 再來算中兩個號碼的04/23 23:57
9F→:最後 只要在多買一張跟前面不一樣的號碼 就可以中了!04/23 23:58
7F→:我只算3080= =慘了 XD04/22 22:28
9F推:房間是固定 三人房三人房四人房嗎?04/22 23:05
12F→:為什麼要乘304/22 23:10
14F→:對齁XD04/22 23:12
1F推:看 1算了幾次 1/2算了幾次 1/3算了幾次...依序下去04/11 23:47
2F推:475304/11 23:52
4F→: 為啥?04/12 16:46
5F推:原來是排容 看懂了!04/11 16:41
4F推:推樓上!03/27 20:19
1F→:x^2 = 52/3 喔03/26 20:21
6F→:ans=13?03/26 18:11
8F推:13/√3 才對!!03/26 20:20
2F推:-22?03/26 15:29
6F→:http://math.pro/db/thread-1019-1-1.html03/26 15:38
7F→:我是這樣算 原式乘上(x-1) 得x^4+x^3+x^2+x-4=003/26 15:40
8F→:x^4+x^3+x^2+x+1=5 兩邊同乘 x-1 得x^5-1=5x-503/26 15:41
9F→:x^5=5x-4 所求=5(a+b+c)-12=5(-2)-12=-2203/26 15:42