ޥ
ߤޤAP:PD = 1:1ΤĤ꤬...250ܤǤm(_ _)m
iMac 1116ڡ 0:22:37 HomePage:46776
KKK
Ϣ³̤
̹ͤƥͥ饦̵
͡ 1116ڡ 0:23:28 46777
Mr.ǥ
B',C',D'ϡ¦̤43ʬ
B'C'D'ϡ̤γդǤǤ뻰ѷѤΡ16/49
B'C'D'ᢤBCD*(4/49
B'C'D'PεΥABCDεΥΡ2/34/72/21ܤä
ѽPB'C'D'=ѿABCD*(4/49)*(2/21)
=ѿABCD*(8/1029)
ä
͡1029/8....Ȥޤ
8/1029ǧڤʤΤDz٤⸡٤ޥ¤

1116ڡ 0:27:58 46778
鯤ο
׻ְ㤤ơ٤ޤ

AȤơB,C,Dΰ֥٥ȥb,c,dȤȡ

Gΰ֥٥ȥ1/3(b+c+d)
Pΰ֥٥ȥ2/9(b+c+d)

ABAB+xBPȤȡBϢACDʤΤbʬäΤǡ
x=9/7
ꡢBP:PB7:2
ƱͤˡCP:PC7:2
ꡢDP:PD7:2

ѿABCD3*ѿPBCDᣳ*(7/2)^3*ѿPBCD1029/8*ѿPBCD

1116ڡ 0:36:31 46779
ǯ
ѿB'C'D'GȤФפǷ׻Ƥޤ
褯ɤСѿB'C'D'PǤ
̤λѿǤȽˤΤǡѿǷ׻
ɵǤդλѿǤ⡢äݤˤʤǤ
BGB'ǽ̤B'ΰ֤ȡ夫鸫̤B'C'D'BCDФΨޤ

1116ڡ 2:57:08 46780
ޥ
¤ϺϵΡ轵꤫Υ󥸤äꤷޤ....ʤɤ⡢ޤꤪ⤷ʤǡߤޤ...
iMac 1116ڡ 0:58:07 HomePage:46781
baLLjugglermoka
ꥢ륿ٹ路ơοͤȤǤʤͤäΤǡ򤿤äƤޤ˥
1116ڡ 1:11:38 46782
ˤ
٥ȥǷ׻ޤܥߥˤʤä
夤Ʒ׻˵ޤޤ
ǤǤʤOrz
Ķļˡ 1116ڡ 1:27:42 46783
Ȥ
ѿѿȤƺɸG(0,0,0),A(0,0,2*sqrt(6)),B(0,2*sqrt(3),0)
C(-3,-sqrt(3),0),D(3,-sqrt(3),0),P(0,0,2*sqrt(6)/3)Ȥ
ľCP:(x+3)/3=(y+sqrt(3))/sqrt(3)=z/(2*sqrt(6)/3)(1)
A(0,0,2*sqrt(6)),B(0,2*sqrt(3),0),D(3,-sqrt(3),0)̤ʿ̤XMaxima
solve([a*0+b*2*sqrt(3)+c*0=d,a*0+b*0+c*2*sqrt(6)=d,a*3+b*-sqrt(3)+c*0=d],[a,b,c,d])$
rat(rootscontract(rat(%),algebraic)),algebraic$
part(%,1);a=sqrt(3)*%r1,b=%r1,c=sqrt(2)*%ri/2,d=2*sqrt(3)*%r1
2*sqrt(3)*x+2*y+sqrt(2)*z=4*sqrt(3)
(1)=sȤ(3*s-3,sqrt(3)*s-sqrt(3),2*sqrt(6)*s/3)(2)
ʿ̤̤뤳Ȥ
ͤXMaximaDz򤯤
solve(2*sqrt(3)*(3*s-3)+2*(sqrt(3)*s-sqrt(3))+sqrt(2)*2*sqrt(6)*s/3=4*sqrt(3),s)$
part(rootscontract(rat(%),algebraic),1);s=9/7 (2)
C'(6/7,2*sqrt(3)/7,6*sqrt(6)/7)
ľDP:(x-3)/-3=(y+sqrt(3))/sqrt(3)=z/(2*sqrt(6)/3)(3)
A(0,0,2*sqrt(6)),B(0,2*sqrt(3),0),C(-3,-sqrt(3),0)̤ʿ̤XMaxima
solve([a*0+b*2*sqrt(3)+c*0=d,a*0+b*0+c*2*sqrt(6)=d,a*-3+b*-sqrt(3)+c*0=d],[a,b,c,d])$
rat(rootscontract(rat(%),algebraic)),algebraic$
part(%,1);a=-sqrt(3)*%r1,b=%r1,c=sqrt(2)*%ri/2,d=2*sqrt(3)*%r1
-2*sqrt(3)*x+2*y+sqrt(2)*z=4*sqrt(3)
(3)=tȤ(-3*t+3,sqrt(3)*t-sqrt(3),2*sqrt(6)*t/3)(4)
ʿ̤̤뤳Ȥ
ͤXMaximaDz򤯤
solve(-2*sqrt(3)*(-3*t+3)+2*(sqrt(3)*t-sqrt(3))+sqrt(2)*2*sqrt(6)*t/3=4*sqrt(3),t)$
part(rootscontract(rat(%),algebraic),1);t=9/7 (4)
D'(-6/7,2*sqrt(3)/7,6*sqrt(6)/7)
C'xɸ-D'xɸ=12/7줬ѷ(о)ΰդ
Ѥޤ⤵C',D'zɸ-PzɸǻѿB'C'D'PѤ
((12/7)/2)^2*sqrt(3)*(6*sqrt(6)/7-2*sqrt(6)/3)/3=48*sqrt(2)/343
,ѿABCD=18*sqrt(2)ꤳͤdz18*343/48=1029/8()
˭ԡ 1116ڡ 2:22:22 46784
ֿء׾ι
٥åɤǰŻǤ
1116ڡ 3:56:02 46785
٥륯åĥ
СУǤ11ȻפǤޤ׻ߥޤäƤΤǤǹʤΤȻפäƤ麬ŪʤȤäƤȤ

ѷѤդ椫¡ǣ͡43ʣͤϣ£äˡƱͤˣáǣġǤͤơ桦椫¡ǣáǣġǡ£ãġ44477
ѷ¡ǣáǣġǤȣǤθǡǤȤȣǡǡǡǣǡ43ʤΤǡУ¡ǣáǣġǤѤϣ£ãĤѤ4/49⤵2/21ˤʤΤǡ1029/8ˤʤޤ

¾ˤʬʬҤդäƤߤꡢ3433Ǥʤΰ̤3ƤߤꡢƬƯƤʤ褦Ǥ
1116ڡ 10:46:28 46786
⡼ޥ
錄...
8/1029...ä줺㤤Ƥޤ...
褯...ʤȶ򤫤...^^;;;...
1116ڡ 15:02:22 46787
ֿء׾ι
#46776

ǤܤϤƤä׻ϤƤΤȻפ
2149ϡ215021ʤɤȹפƾڤޤ
4:32:1ϢäȤʡ
1116ڡ 17:00:41 46788
N
׻ѤǤɤǤ꤬Ȥޤ
1116ڡ 20:30:47 46789
٥륯åĥ
#46776
ˤʤʤä250äȤϡ
#46788
4921Ż뤿4973433433Ȥơ˽񤤤褦˿ܤưΰ̤3ΤޤޤˤƤ䡣
1116ڡ 23:26:38 46790

⡼ޥ󤵤ƱǻߤޤäƤơۤɤǵդޤ
1117ʶ 10:40:58 46791
y
ͥ饦ʤɻȤä
⤵ѤȤ
ΩΤ򥤥᡼Ǥ뤫
1117ʶ 11:13:27 46792
ȤޤԤ
᡼̤׻Τߤǽλ桢äȥͤäɡ
1117ʶ 12:57:11 46793
ˤ⡼
Фˤ

ĤλѿλѷʢBCDB'C'D'
BP:B'P=7:2
BDP梤B'D'P
DCP梤D'C'P
CBP梤C'B'P
7:2Ǥ뤳Ȥ
BD:B'D'=7:2

BCDB'C'D'494

⤵桡AP:PG=2:1 B'P:PB=2:7ƳФ
Ĥλѿι⤵21:2

äơϡ
(49/4)(21/2)=1029/8
̸ǭ 1117ʶ 22:00:40 46794
ϺĹ
졢졢졢ƥᲡλ
1118ڡ 11:41:19 46795
ޤ
ޤȤϡʶСˡͥ饦ϾǤɬܡ
#46776 ʼˤ򸫤Ƥ뤫ɤϤƤ
Ƕؼϡ硢ռƤȤä
ܤˤȤ⤴ޤ͡

102981037ǡ­ʤʡȻפäƤޤ
1029 / 8 ǡ1029++1038ʲܤνˡ>ޥ뤵
somewhere in the world 1121ʲС 22:28:15 46797