̻
ջѷ3:4:5˵ŤС
ȤƱDz򤱤ޤ
610ڡ 0:25:54 50557
鯤ο
ABPȡACBȤȡ
5cos6cos
sincos2

sinȡ3/5cosȡ4/5sincos2ȡ7/25cos24/25
ȡAPDϡͭ̾ʻѷĥ碌Ȥ狼ޤ
ȤϡŤ뼰ˡ狼ޤ

D顢AH˲­EȤȡ
AE5sin1.4
EP6sinȡ3.6
AP=AE+EP5
PHAP*AB/BHAPcos2ȡ1.4
EH=EP+PH=5
AH=AP+PH=6.4
Q顢AC˲­J
D顢QJ˲­F
Ȥȡ
QJQF+FJPH+EH6.4
äơAQBCι⤵AQ//BIʤݥȡ
ˡAQ=ED+DFHI+BHBI
äơABIQʿԻշ
QIABAH/cos20/3
//

¤ϡ
HIED=6cosȡ4.8
BHAHtan28/15
BIHI+BH20/3
ʤΤǡABIQϤҤ
610ڡ 1:04:56 50558
鯤ο
ĥ碌Ž碌
610ڡ 1:05:29 50559
٥륯åĥ
Τ˽񤯤ѤʤΤ绨Ĥˡ
AP=AQջѷǤơAPIQABIQ ҤAI֤345ľѻѷǤơQBIƱ345ˤʤäơ5ߡ4/3ˡ20/3ˤʤޤ
610ڡ 1:14:59 50560
٥륯åĥ
ջѷϳѤǤ
610ڡ 1:15:51 50561
ǯ
AIPD̤ΤΤ˼ּޤ
ñʤȤʤΤ.....
610ڡ 1:50:34 50562
ߤ
ʤȤʤľѻѷˤʤ󤸤ʤʡäƴǤ

СĹξ郎­ʤʤȤϡľѻѷ򵿤פǤ͡
610ڡ 2:05:13 50563
CRYING DOLPHIN
#50552
˿ΤĤͭ̾ƥȤ 4ĤθĿ ȤƺܤäƤޤ
ΥСˤϺܤäƤʤä褦ʡ

Ϥɤǽꤵ줿꤬ȵڤƿʲ뤲뤳ȤϤޤ͡
ǤϤ񤷤̤äƤͳѿǤϺŵꡢ
ƺH14ʸڤϻѿǤޤǽꤵ褦ˡġ

ǿǸС
R3ǯ饵 οʣˤޤФ餷
ȵڤƤʵޤ
夲ƻ衡 610ڡ 2:07:27 MAIL:Ԥ HomePage:ԤԤ󤹤50564
Ȥ
3IJˡǤäǤ3ܤǤñ㤽ʤΤ


BAD,BIDϹƱɸ
B(0,0),D(a,0),A(b,c),I(b,-c)Ȥ
ľAP:y=b*(x-b)/c+cy=0P((b^2-c^2)/b,0)
a-(b^2-c^2)/b-6=(c^2-b^2+a*b-6*b)/b
(a-b)^2+c^2=25,(c/b)*(-c/(a-b))+1=(c^2+b^2-a*b)/(b*(b-a))
3
c^2-b^2+a*b-6*b=0(1)
c^2+b^2+a^2-2*a*b-25=0(2)
c^2+b^2-a*b=0(3)
(2)-(3)a^2-a*b-25=0bˤĤƲ򤯤
b=(a^2-25)/a(4)
(1)+(3)
2*c^2-6*b=0c^2=3*(a^2-25)/a
(4),(3)
3*(a^2-25)/a+((a^2-25)/a)^2-a^2+25
=(a-5)*(a+5)*(3*a-25)/a^2a=5b=c=0Ŭ
a=25/3,b=((25/3)^2-25)/(25/3)=16/3,c=4
Pxɸ:(16/3)^2-4^2)/(16/3)=7/3Q(32/3,0)
I(16/3,-4)껰ʿsqrt((16/3)^2+4^2)=20/3()
˭ԡ 610ڡ 2:34:15 MAIL:fttnm528@ybb.ne.jp 50565
ֿء׾ι
3-4-524-25-7ľѻѷФƤޤ
ФäƤ󤶤Ǥɤä
610ڡ 4:23:52 50566
ɥȥ
AI3:4:5äƤȤϰľ
610ڡ 7:21:08 50567
mukku
­1ķ礱Ĥޤ
610ڡ 10:11:40 50568
Mr.ǥ
BDI345λѷ顡BI54/3ˡ20/3
ɤ˴ؤƣ¤ȣѤоΤȤʤ뤫顡
ɣѡ£ɡ20/3....Ȥޤ
610ڡ 18:03:32 50569
syoshimsya
ͳѷABIQAHIDɩʤΤǡAI=8 PD=6ꡢ8:6=IQ:5ʤΤǡIQ=20/3Ȥʤޤ
610ڡ 18:44:17 MAIL:syokyuhsya@gmail.com 50570
feyerabend
A, B, I, D are concyclic.
P is orthocenter of a triangle ABI.
BD AI =: { T }
PT = TD = 3
BTTD = AT TI
BT = 16/3
TQ = BT = 16/3
IQ² = 4² + (16/3)²
IQ = 20/3
611ʶ 8:00:25 50571
ˤ
о3:4:5ꡣ
Ķļˡ 611ʶ 11:48:17 HomePage:ޤޤ50572
ޤ
פ֤ˤˤǤޤ (^^;
somewhere in the world 616ʿ 6:09:26 50573
ޤ
#50564 CRYING DOLPHIN

> ˿ΤĤͭ̾ƥȤˡ

Ϥ5000١ (^^;
somewhere in the world 616ʿ 16:43:34 50574