å
ϢꤷơߤޤǤ(ڥ)
89ڡ 0:22:20 47464
ޥ
ߤޤ󡢤ꡢѤߤʵΤǤ....ʤɤõƤ⸫ʤäΤǡФƤޤޤˡʤꥸʥǤϤޤ...m(_ _)m
iMac 89ڡ 0:36:11 HomePage:47465
ˤ
ʤɤȤäƼ򤿤Ƥޤ򤯤Τݤǡ
٤ץǸڤƣȤޤOrz
Ķļˡ 89ڡ 9:17:40 47466
ǯ
357䤬ǤλϲȤƻѴؿȤäƲ򤤤褦ǤˤޤǤ
֤ݤǤʤǤʤפȰö᤿ͤǡǼĤ줿ΤǤȥ졼Ƥߤȸ̤ޤ
١ĩǤ
89ڡ 9:28:23 47467
nobu
357β򻲹ͤˤ褦Ȼפä
ʬν񤭹ߤ򸫤ƥӥå
ˤĤ԰¤ޤ
89ڡ 10:35:31 47468
ϥ饮㡼ƥ
򤤤ޤѴؿDz򤭤ޤ
89ڡ 18:40:59 HomePage:湩ؤ˥47469
ֿء׾ι
ī˹ԤäƤƺˤʤޤ
⡢ऺǤ͡
89ڡ 23:10:34 47470
cocogoo
B=2 ¡AB=a,AD=p, DC=q ȤСa/2acos2=p/q, ѷPDCŬѤơp/sin30=q/sin(3¡30) 2 cos2=sin(3¡30)
=24
810ʶ 0:55:43 47471
sujarta
ABC˲­HDPC˲­H'Ȥ
Ѥʬԥ饹Ȥä PH'=(AB^2-BC^2/4)AD/AB=AHAD/AB
PH':AH=AD:AB(=PD:AB)
ä PH'D梤AHB

B=2¤ȤȡADB=3,PDH'=B=2
CDH'=60ʤΤǡ3+2+60180¡24
810ʶ 1:36:24 47472
kyorofumi
#47461
ϾܤʤǤդ˹ͤФ狼䤹ΤǤϤʤǤ礦

ʤ26̤Ѥ252뤳Ȥͤ롣26̤οΥѥžˤäƺο
2610=260̤Ǥ뤬Τ2̤ĤΤΡˤ4󤺤ĿƤΤǡ
260-2*4=252
810ʶ 3:07:39 47473
ޤ
򤱤ʤΤǡŬ˿줿顢ܤäƤޤޤ
ľƻޤorz
(ԤΰˡMr.ǥ äʤΤǡ
äȿۤƤޤ򤱤ʤϥϤʤǤ礦ġ
somewhere in the world 810ʶ 23:06:11 47474
ǯ
Ǥϡsujarta#47472ˤ357Υޥ뤵ˡ򻲹ͤˤ
ABDxȤСADB=3x
CDPPC򼴤ȿž롣
DȿžEDEPCθQȤ
PEDջѷ
EPPDADEDDCʤΤǡEPEDADDC
ѤʬꡢADDCBABCǤ⤢Τǡ
ABCPED¨PDEACB2x
DβγѤϡ3x+2x+60=180ʤΤǡx24¨ĺѤ180-4x84

ؤǤϤޤPCDȤäפɬפΤʤȥ졼ȤˡǤ͡
810ʶ 23:28:23 47476
SECOND
麸ˡ£ʿԤ˿Фȡ鲼ˡ£ÿľ˿Фǽ
ľѻѷϡУäؿľ˿Фκ¦ΡľѻѷȡƱ
Ĥ顢£ʿԡ¤ȤθޤǤĹģä ΤǡľѤȣդʤ

ϡܣ¡ܢܣ/2ܢܣ¡60=180

ܣ= (180-60)/2.5 =48 ܣ= 180-ܣ-ܣ =84

810ʶ 23:42:07 47477
ˤ
#47471 cocogoo
ʤջѷդȳ٤δطȤ
ñʤΤǤ͡Orz
Ķļˡ 811ڡ 13:19:13 47478

SENOND󡢤ߤȤǤ
ʤ䤫ʲˡ򸫤ȴưޤ
811ڡ 21:44:17 47479

餷ޤ
SENONDSECONDǤ
811ڡ 21:54:15 47480
Ȥ
ɸA(1,0),B(b,c),C(a,0),D(0,0)Ȥ
AB=AC(b-1)^2+c^2=(1-a)^2 cˤĤƲ򤯤
c=sqrt(-b^2+2*b+a^2-2*a)(1)
CD(=-a):DA(=1)=BC(=sqrt((a-b)^2+c^2)):BA(=sqrt((b-1)^2+c^2))
sqrt((a-b)^2+c^2)=-a*sqrt((b-1)^2+c^2) ξա2Ǥ
(a-b)^2+c^2=a^2*((b-1)^2+c^2) դ鱦դ
-(a-1)*(a*c^2+c^2+a*b^2+b^2-2*a*b)=0
a*c^2+c^2+a*b^2+b^2-2*a*b=0(1)
2*b+a^3-a^2-2*a=0bˤĤƲ򤯤b=-(a^3-a^2-2*a)/2(2)
ľBD:y=c*x/b,ľCP:y=sqrt(3)*(x-a)/3θP
(-a*b/(sqrt(3)*c-b),-a*c/(sqrt(3)*c-b))DȤεΥ1
(a^2*c^2-3*c^2+2*sqrt(3)*b*c+a^2*b^2-b^2)/(sqrt(3)*c-b)^2
a^2*c^2-3*c^2+2*sqrt(3)*b*c+a^2*b^2-b^2=0 ѷ
2*sqrt(3)*b*c=-a^2*c^2+3*c^2-a^2*b^2+b^2 աȤ2褹
(âդޥʥξaͤǤƤ)
a^4*c^4-6*a^2*c^4+9*c^4+2*a^4*b^2*c^2-8*a^2*b^2*c^2-6*b^2*c^2+a^4*b^4-2*a^2*b^4+b^4=0
(1),(2)Ȥ(a-2)^2*(a-1)^2*a^4*(a^4+a^3-4*a^2-4*a+1)=0 a
a^4+a^3-4*a^2-4*a+1=0򤤤a=(-sqrt(6*sqrt(5)+30)+sqrt(5)-1)/4(3)
(2)Ȥ
b=-(sqrt(sqrt(5)+5)*sqrt(6)-sqrt(5)+1)*(sqrt(5)*sqrt(sqrt(5)+5)*sqrt(6)-3*sqrt(sqrt(5)+5)*sqrt(6)-4)/64(4)
(3),(1)Ȥ
c^2=(sqrt(sqrt(5)+5)*sqrt(6)-sqrt(5)+1)*(80*sqrt(sqrt(5)+5)*sqrt(6)+48*sqrt(5)+400)/1024
(4)2褷Τ
b^2=(sqrt(sqrt(5)+5)*sqrt(6)-sqrt(5)+1)^2*(sqrt(5)*sqrt(sqrt(5)+5)*sqrt(6)-3*sqrt(sqrt(5)+5)*sqrt(6)-4)^2/4096
c^2/b^2=64*(5*sqrt(sqrt(5)+5)*sqrt(6)+3*sqrt(5)+25)/((sqrt(sqrt(5)+5)*sqrt(6)-sqrt(5)+1)*(sqrt(5)*sqrt(sqrt(5)+5)*sqrt(6)-3*sqrt(sqrt(5)+5)*sqrt(6)-4)^2)
sqrtc/b=(-sqrt(sqrt(5)+5)*sqrt(6)+sqrt(5)+7)*sqrt(sqrt(sqrt(5)+5)*sqrt(6)-sqrt(5)+1)*sqrt(5*sqrt(sqrt(5)+5)*sqrt(6)+3*sqrt(5)+25)/16
=sqrt(7*sqrt(5)*sqrt(sqrt(5)+5)*6^(5/2)+4*sqrt(sqrt(5)+5)*5^(5/2)*6^(3/2)-14*sqrt(sqrt(5)+5)*5^(3/2)*6^(3/2)-64*5^(3/2)*sqrt(sqrt(5)+5)*sqrt(6)-112*sqrt(5)*sqrt(sqrt(5)+5)*sqrt(6)+512*sqrt(5)+1280)/16
=sqrt(2*sqrt(5)+5)=tan(72*%pi/180)=tan(BDA)=tan(3*ʸι) ꡡʸι=24
BAC=180-24*4=84١()
˭ԡ 812 19:58:00 MAIL:fttnm528@ybb.ne.jp 47481
⡼ޥ
#47477
SECONDβˡäȥȥ졼Ǥޤ^^

ɤ߲̣ˤ
AIǤ⤳ʤ˥ޡȤ˲򤱤Τʤ ^^
813ʷ 0:02:29 47484
ˤ
#47477 SECOND
Ǥޤ꤬Ȥޤ
Ķļˡ 813ʷ 1:29:08 47485
N
ȯְܴ㤨ޤʤʤǤ
813ʷ 10:47:23 47486
sujarta
#47477 SECOND͡Ǥ
ǤϤ줬ŪʲˡǤ礦͡
ͤ᤬Ťäʡʤޤ
813ʷ 20:39:50 47487
sujarta
#47477 SECOND͡Ǥ
ǤϤ줬ŪʲˡǤ礦͡
ͤ᤬Ťäʡʤޤ
813ʷ 23:34:18 47488
٥륯åĥ
ϥڡ򳫤ޤ޿ƤޤθʤʤפĤޤǤ
815ʿ 19:57:00 47489
ޤ
ɡ򤱤#47477 SECONDޤβִվޡפޤ(^^;
ʰݤäƤ⡢פĤʤ褦ʡġˡ
ƱʬǤϵŤޤ󤬡#47476 ǯԤޤβˡ
ۤޤդǽޤǤ礦

ޤޤʤͤФʤޤ
somewhere in the world 821ʲС 22:48:48 47490

2äǤʤȤߤޤ
ФΤ׹ͤ³ϤߤߤꤨƤޤ(^^;
ڤ˲򤤤ƤäΤ
ФΤˤƤϥǤ(^-^)
ȤۤۡǽΤʤ衣(>_<)

822ʿ 14:36:24 47491