Ф
뻡ˤä
513ڡ 0:18:42 50468
⡼ޥ
꤫⤷ʤ...
BQ=PC
APPPR=PCRȡ
AB=AR
so...AQ=AP
so...AQ=AP=AC
so...QAP=CAP=ѡ
so...5?=180
?=36
513ڡ 0:31:22 50469
ߤ
ѣ¡УáѣУáѣѣ£СѣѣУ
ѣ¡ѣСУáѷУѡỰѷУáʣ
ѣ£äγ٤ʣˤȤȳѣ£áѣ£ãʣ
ʣˡܡʣˡܡʣˡʣˡᣱ
Τϡʣˡᣱࣵᣳ
513ڡ 0:34:40 50470
鯤ο
ABP΢֤ơAPDꡢAPACŽ碌ȡB,P,C,Dϰľ

ǡ
AQBPCDX
AP=ACY
BQPCZ

BCAȢAPCѤ2ջѷ
äơ
AP:PCY:ZBC:CAX+ZY

ޤ
QPB180-QPC
180롼*APC
PAC
CBA
PDA

äơQP//AD
äơ
AQ:QZX:ZDPPBX+ZX


Y^2Z(X+Z)X^2
顢X=Y

QBPȤȤȡX=YꡢBAP
PAC
APC=ACP2
ȡ180
ȡ36
//

513ڡ 0:53:40 50471
⡼ޥ
錄ΤϥǥǤ ^^;
ߤ󤵤Τ狼䤹Ǥ͡
513ڡ 0:55:20 50472
Ȥ
B=aȤ
A=C=(180-a)/2=ִ
BAP=A-PAC(=B)=(180-a)/2-a=-3*(a-60)/2
AQP=180-BAP-APQ(=ִ)=180+3*(a-60)/2-(180-a)/2=2*a
QPB=180-QPC(=2*ִ)=180-(180-a)=a
QBPջѷִ=aȤƺɸ
P(0,0),B(-2,0),Q(-1,b)Ȥ
B=180-2*a(1)
tan(B)=tan(180-2*a)=-2*tan(a)/(1-tan(a)^2)
b=-2*tan(a)/(1-tan(a)^2)
Q(-1,-2*tan(a)/(1-tan(a)^2))(2)
ľBA:y=(-2*tan(a)/(1-tan(a)^2))*(x+2)
ľPA:y=tan(a)*x
2ľθA(4/(tan(a)^2-3),4*tan(a)/(tan(a)^2-3))
(2)QA=2ǻʿ
(4/(tan(a)^2-3)+1)^2+(-2*tan(a)/(1-tan(a)^2)-4*tan(a)/(tan(a)^2-3))^2-4
=-(tan(a)^4-10*tan(a)^2+5)*(3*tan(a)^4-6*tan(a)^2+7)
/((tan(a)-1)^2*(tan(a)+1)^2*(tan(a)^2-3)^2)=0
tan(a)^4-10*tan(a)^2+5=0,3*tan(a)^4-6*tan(a)^2+7=0
Ԥִ=a45ʾtan(a)=sqrt(2*sqrt(5)+5)
ԤϵŬ
tan(a)=sqrt(2*sqrt(5)+5)a=72(1)Ȥ
B=180-2*a=180-144=36롦()
˭ԡ 513ڡ 1:31:05 MAIL:fttnm528@ybb.ne.jp 50473

ɤä긫ǤȤꤢջѷǤʡȸȤĤCADǿ̰ƤȤꤢϤޤQB=PCäƤɤäޤޤ
513ڡ 1:43:40 50474

ɤä긫ǤȤꤢջѷǤʡȸȤĤCADǿ̰ƤȤꤢϤޤQB=PCäƤɤäޤޤ
513ڡ 1:47:28 50475
ֿء׾ι
ѤФˤʤޤ(^^)/~
513ڡ 1:54:23 50476
Ȥ
#50474
<QB=PCäƤɤäޤޤ

ջѷAB=CB
ФĹAQ=PBBQ=AB-AQ=CB-PB=CP
˭ԡ 513ڡ 2:00:37 MAIL:fttnm528@ybb.ne.jp 50477
ɥȥ
ǢPAC=CBA
ȤäƢCBA=BPQBQ=PQPQ=PC
äƢCAB=PAC=
=180 =36
513ڡ 16:18:31 50478
bon
򤱤ʵפ֤
513ڡ 16:45:53 50479
Ϸ
£ѣФϣգѷ
ܣѣ£СܣѣУ¤
ܣѣСܣУ
ѣТᢤУä
ܣ£áᣱࣵ

ܣ£áᣲߢܣУáʢܣ£á
ޤΤ˻֤ޤ
513ڡ 16:57:09 MAIL:takaaki-k@aqr.bbiq.jp 50480
Ѥ
סޤ
513ڡ 19:38:53 50481
٥륯åĥ
ͼ٤ϷǼĤ˽񤭹˿Ƥޤޤ
APC=ABC=BQP
դʤΤBQ=PQBQ=PCʤΤPQ=QCǻѷAPCȻѷAQPϹƱ
ABCBAC:ACB122ʤΤ36١
513ڡ 23:22:05 50482
ޤ
դϸĤäɤƱ˷ӤĤΤ˻֤ޤ
513ڡ 23:48:31 50484
ޤ
#50468 Ѥݤ
> 뻡ˤä

פ鷺Фä㤤ޤ
30뤸ʤä顢36뤫(^^

Ʊλѷ˵ŤƤ褫äǤ
somewhere in the world 515ڡ 0:50:22 50485
ˤ
ޤꡣ
Ķļˡ 515ڡ 19:09:20 50486
ˤ
Ȥ¿Ǥط̵ɡ
Ķļˡ 515ڡ 19:10:39 50487
Ф
ˤʤäƤ뤾

ޤ͡#50485

ͭ̾Τ޶⹻϶𤫡ǶϥԤλǤФˤޤ

ABBC2ջѷBCPäȤAC=AP=BPȤʤäB礭ʤ

줬ѤäȻפ⤫Ӥޤʹ褯Ƥޤ󤫡
ݤֻ뻡פȤդˤʤޤ
515ڡ 21:12:29 50488
鯤ο
#50488

⸫ФΤ޷Ȼפǽϻ뻡DzϤޤ
º36٤Ȥľ˳ǧǤޤ
θ塢ΰγǧȡ˽񤭹िˡդDzõޤ
515ڡ 21:39:50 50489
ޤ
#50488 Ѥ
#50489 鯤ο

ʤۤɡޤˤäơ
¸Τǡֻ뻡פɽ줿ΤǤ͡

Ƥäꡢοޤˤǡϡפdz٤¬줿Τ
פޤ (^^;

somewhere in the world 517ʷ 0:58:43 50490