Ϥʤ
£ãġܣУѣ¡ܣУѣ¡ܡʰգѷˡʰգѷˡܡʰգѷˡܣУѣ

顣סˤޤˤФä饫󤬤äƤƤܤ󡦡(T-T
1014ڡ 0:15:09 36912
CRYING DOLPHIN
PQBᢤPDAᢤDQC(2դȤδ֤γѤפ)
ꡢPDQϰդ2cmѷ
PQBXʿԻշABCDYPQB[4]ȤΤѤɽ
[4]2*XY[49][36]XXY[81]

PQ2cmȤʤ褦ʾ¾ˤ⤢ꤽǤ餯
ޤΤ褦(PABȢQBCBʳ˶ʬʤ)ʤʤ
ΤǡʤǤ礦
ï⤤ʤԳϡ 1014ڡ 0:23:15 HomePage:ƻ36913

ʥ륫(Ƥߤ)
֤δ֤γѤפξˡ򶵤Ƥޤ󤫡
1014ڡ 0:29:15 36914

ޤ󡣡֥ʥ륫פΤۤǤ
1014ڡ 0:33:22 36915
ݤä
ʿԻշ£ãĤѤȻѷУѣ¤Ѥ¤ǤϤʤ
ѷABC*2+ѷУѣ¤ˤ٤夬뤫Ȼפޤ(ɤǤ⤤ΤǤ)
˸³򴶤ؤǤȻפäΤǤϤǤǤޤǤ
ɤߤʤƱ褦ʲˤɤ夯ޤ20ʬޤ
1014ڡ 0:33:53 36916
Ϥʤ
#36914 ʥ륫󤸤ʤɡʴ
ѣУ£Ѥx£ĤyȤȡ

ʿԻշABCD4ĤγѤϡ120+x+yˡ2ˤʤޤĤޤ120+x+y=180٤ʤΤǡ
1014ڡ 0:34:28 36917
CRYING DOLPHIN
#36914
PBQᥢCABᥤACBᥦȤ롣
ABCѤˤơABC120ܥ顢120ܥܥܥ180١
äƥܥܥ60١ġ
PABQCB60١ʿԻշDABBCDᥤܥ
顢ȡꡢPADDCQᥢ(ʲά)

äȡϤʤۤ줿(^^; ԥ󥰷
ޤޤꡣ
Ϻ鴵äƤʢ١פΤˤƤޤzz

ï⤤ʤԳϡ 1014ڡ 0:43:15 HomePage:ƻ36918

գѷѤ[1]Ȥơ
£УѤѤӤȤȡ
Ρ[49][36]ܣӡ[85]ܣ
PQBᢤPDAᢤDQC顢
ѡ[81]ܣӡˡݡ[4]ܣӡˡ[81]
äƤȤǡ[81]/[49]81/49
ܿĻԡ 1014ڡ 0:43:01 MAIL:dice-k@onyx.ocn.ne.jp HomePage:36919
Ϥʤ
ʥ륫餷ޤǤ㡡
1014ڡ 0:44:55 36920
abcba@jugglermoka
AB=a,BC=b,PQ=cΤȤͤ(a^(2)+b^(2)+c^(2))/a^(2)ܤˤʤ롣
a>ba>c
b>ab>c
Ωġ
1014ڡ 0:45:34 36921

CRYING DOLPHIN󡢤Ϥʤ󡢤꤬Ȥޤ
ޤޤŤʡ(ɤ)
1014ڡ 0:54:16 36922
ͣ.ǥ
줷ʶˡѴؿȤäФޤ줫黻ǹͤƤߤޤ
1014ڡ 1:56:23 36923
ϥ饮㡼ƥ
Ϥ褦ޤ
ѴؿȿץǤ
1014ڡ 8:57:09 HomePage:ϥ饮㡼ƥ湩36924
uchinyan
Ϥˤϡơϡ
ϡ餷ƳڤǤʴǡ

ޤAP = BP = CDAD = BQ = CQ ǡ
PAD = PAB - DAB = 60- DAB
PBQ = ABC - PBA - QBC = 180- DAB - 60- 60= 60- DAB
DCQ = QCB - DCB = 60- DAB
ʤΤ PAD = PBQ = DCQ ˤʤäơPDA PQB DQC ȤʤꡤPD = DQ = QP = PQ = 2 cmPDQ ѷǤ
ơѤͤȡ
ABCD + PDA + DQC + PDQ = ޳ѷPABCQ = PAB + PQB + QBC
ABCD + PQB + PQB + PDQ = PAB + PQB + QBC
ABCD + PQB = PAB + QBC - PDQ
ˡPABQBCPDQ = (7 * 7)(6 * 6)(2 * 2) = 49364 ʤΤǡ
= (ABCD + PQB)/PAB = (PAB + QBC - PDQ)/PAB = (49 + 36 - 4)/49 = 81/49
ˤʤޤ
ͥνȡ 1014ڡ 11:23:26 MAIL:uchi@sco.bekkoame.ne.jp 36925
uchinyan
ǼĤɤߤޤ
ˡγϡ
PDA PQB DQCPD = DQ = QP = PQ = 2 cmPDQ ѷ
ABCD + PQB = PAB + QBC - PDQ
ѤΤ褦Ǥ͡

ʤ
#36921
亣AB=a,BC=b,PQ=cΤȤͤ(a^(2)+b^(2)+c^(2))/a^(2)ܤˤʤ롣
¿ʬ(a^(2)+b^(2)-c^(2))/a^(2)ܡפν񤭴ְ㤤ʡ
ͥνȡ 1014ڡ 11:44:57 MAIL:uchi@sco.bekkoame.ne.jp 36926
abcba@jugglermoka

#36926
Ŧͭ񤦸¤ޤ
ĤȤ(a^(2)+b^(2)-c^(2))/a^(2)ܤ
񤭴ְ㤨Ǥ
1014ڡ 12:01:53 36927
ߡ
ऺäǤ
ż֤Ǥϲ򤱤ޤġ
1014ڡ 16:09:49 36928

ϤΤĤ˺Ƥꤹ鸫Ƥʤä
뼺֡
1014ڡ 17:25:52 36929
Ȥ
ʿԻշγ٤Ǥн뤳Ȥ˵դгھǤ
ʲˡǤ

ABCsinѤϢPBQ=aȤ
factor(trigexpand(sin(120*%pi/180+a)));-(sin(a)-sqrt(3)*cos(a))/2(1)
ޤPQB;Ȥä
solve(2^2=6^2+7^2-2*6*7*cos(a),cos(a));cos(a)=27/28
sin(a)=sqrt(1-cos(a)^2)
expand(1-(27/28)^2)$
sqrt(%);sin(a)=sqrt(55)/28
cos(a)=a,sin(a)=bȤ
(ABCD(=2*ABC)+PQB)/PAB=(1)Ȥ
a:27/28$
b:sqrt(55)/28$
expand((-(b-sqrt(3)*a)*6*7/2+6*7*b/2)/((7/2)*(7/2)*sqrt(3)));81/49
˭ԡ 1014ڡ 23:24:49 MAIL:fttnm528@ybb.ne.jp 36930
hide
ʤ
ѴؿǤ

ˤƤ轵񤷤ä
ȡࡡ 1014ڡ 23:39:42 36931
ߥߥϤ
ǽϤʤλˤʤΤʤȻפޤ
Ʊʻѷ3ĸĤäơPDQѷ̵ˤʤޤ

PQBᢤPDAᢤDQC颤PDQѷ
ABCDѤ򢣡PQBѤ򢧡դ1cmѷѤ򢥤Ȥȡ
޳ѷABCQPѤܤȡ
ABCDܢPDQܢPDAܢDQCᢤPABܢQBCܢPQB
2~2ܢܢ7^26^2ܢ
äơܢ{1(6^2/7^2)-(2^2/7^2)}7^2(81/49)PAB
1015ʶ 15:34:34 36932
ɡǤ
꤬Ǥʤä
ΤϻѷPQBPDAQDCƱȤȤ˵դиϴñǤ
ɤǤ礦 1016ڡ 13:17:43 36933
Andre
إθ;ȲˡȤޤ
1016ڡ 18:34:07 36934
Ȥ
ѴؿȤ鷺ߤθȤƺɸǤޤ
ʲǤ

褺P(0,0),B(7,0)濴ȤߤθȤQ
e1:x^2+y^2=4$
e2:(x-7)^2+y^2=36$
solve([e1,e2],[x,y]);17/14,3*sqrt(55)/14
Q(17/14,3*sqrt(55)/14)
Q濴ȤߤB(7,0)濴ȤߤθȤC
e3:(x-17/14)^2+(y-3*sqrt(55)/14)^2=36$
solve([e2,e3],[x,y]);(3^(3/2)*sqrt(55)+115)/28,3*(sqrt(55)+3^(7/2))/28
C((3^(3/2)*sqrt(55)+115)/28,3*(sqrt(55)+3^(7/2))/28)

A(7/2,-7*sqrt(3)/2)
A,C̤ľ
e1:3*(sqrt(55)+3^(7/2))/28=k*(3^(3/2)*sqrt(55)+115)/28+l$
e2:-7*sqrt(3)/2=k*7/2+l$
solve([e1,e2],[k,l]);k=(30*sqrt(55)-49*sqrt(3))/23,l=-(105*sqrt(55)-91*sqrt(3))/23
y=(30*sqrt(55)-49*sqrt(3))*x/23-(105*sqrt(55)-91*sqrt(3))/23
xȤθR
solve(0=(30*sqrt(55)-49*sqrt(3))*x/23-(105*sqrt(55)-91*sqrt(3))/23,x);
x=(105*sqrt(55)-91*sqrt(3))/(30*sqrt(55)-49*sqrt(3))
θBޤǤεΥ
factor(7-(105*sqrt(55)-91*sqrt(3))/(30*sqrt(55)-49*sqrt(3)));
21*(5*sqrt(55)-4*3^(3/2))/(30*sqrt(55)-49*sqrt(3))
(PQB+2*CRB+2*ABR)/PAB
factor(expand((7*(3*sqrt(55)/14)/2+21*(5*sqrt(55)-4*3^(3/2))*(3*(sqrt(55)+3^(7/2))/28)/(30*sqrt(55)-49*sqrt(3))+21*(5*sqrt(55)-4*3^(3/2))*(7*sqrt(3)/2)/(30*sqrt(55)-49*sqrt(3)))/((7/2)^2*sqrt(3))));81/49
˭ԡ 1017 3:39:21 MAIL:fttnm528@ybb.ne.jp 36935
⡼ޥ
⤦䤱......
Ѵؿ?......̵...^^;...Orz...
ߤʤΤٶ...^^v

轵Τ...櫓狼...(...̤狼ʤ...^^)ΨäΤǤ...^^;?
1017 15:32:30 36936
ݤä
פĤޤ
񤷤äĤǤץʤΤǴñˡꤽ
AB22.4AC=16λѷABCꡢBCˢCAD=2BADȤʤ褦DǤäơCʬADˤ­EȤȤAE=8.5Ȥʤä
ΤȤDEĹʤ
#36936
٤ϻ䤬ϤƤ(ۤΰǯǤ)ؤǤ
񤷤ΤǣǤޤ
1017 16:26:09 36937
Ф
פ֤ǤѴؿǢ55562728ʪɤ̵ޤߤޤ

ޥ뤵ʹƤͤޤߤޤ󡣶Ƥ
γ䥰դϤɤʥեȤȤäƤǤǤ
ΥХ©Ҥ򸫤Ƽʬǥդ䳨ƤʤΤǡ˳䥰դ񤫤ʤʤäΤǤ
1017 18:03:41 36938
abcba@jugglermoka
#36937

DE=37/6ˤʤޤ
1018ʷ 1:03:30 36939
ޥ
#36938

οޤˤĤƤϡAdobe Illustrator + PhotoShopǤ

Ƕ硢դMac OS XɸǤĤƤGrapher.appפȤäơEPSϤƤIllustratorDzùƤޤ༫ΤTeXǺäƤΤǡincludeäƴǤ

֤󡢻ΥϻͤˤʤʤȻפޤAdobeΤϹ⤤Ǥ¾Τո򻲹ͤˤΤ...
1018ʷ 2:12:28 36940
uchinyan
#36937
DE = 37/6 ˤʤޤ˿ؤȤäƤޤޤˡϤ⤦ͤƤߤޤ
ͥνȡ 1018ʷ 11:11:25 MAIL:uchi@sco.bekkoame.ne.jp 36941
CRYING DOLPHIN
#36938
ϽΤζ⥵Ȥ˺ܤ볨ֲֻ2009פƤޤ
ȤơPCˤϤĤΤwordȥڥȤѡ
ʤ͡ȣǤϤ­ʤ١

¿ѷ߸̤ʤɤñΤǡ޷ˤϻȤޤ
ؿϡʤȤϤʤɡľäܤǤ

ޤword˿ޤŽդȡΰ㤤ɽǤʤ
(٤ƶ˺Ȥɽ)Ȥ45ٷʱ߸̤߸̤Ȥ
ɽƤޤʤɤκäХ⤢ޤ

ï⤤ʤԳϡ 1018ʷ 13:20:51 HomePage:ƻ36942
ݤä
Ѥ2ʬϻǤȤޤ
1018ʷ 16:41:55 36943
ߡ
ֻҤä
ܵǤäޤʤ顤ãĤǤȤġ
1019ʲС 0:54:24 MAIL:amimorisama@hotmail.com 36944
ܤä
֤ʤƤκϤޤäƤʤäɤäѤ

ΤڤǤ͡

ϴñˤϤʤä
1019ʲС 17:28:11 36945
ɡǤ
Ǥͤ(ܤäȤͧãǤˡ
ɤǤ礦 1019ʲС 21:44:35 36946
ܤä
äѤǤ

1019ʲС 22:47:14 36947
ܤä
ޤ
1019ʲС 22:50:06 36948
ѥ&10ﶥ
#36937,36939,36941Ʊ͡37/6ޤ
Ȥ뤫ɤʬˤʬޤ
ǡx*x=a*a*b*b/c*cx=a*b/cηиŪˤx=68/7
1020ʿ 8:54:40 HomePage:ѥ&10ﶥ36949