EG
󡢿⿴ȤäƲ򤱤ޤޤɤäƤ⻻ˤʤޤ
⤦äȹͤ褦
1119ڡ 0:08:53 49761

߼Ѥdz٤ɤ
1119ڡ 0:18:12 49762
鯤ο
APαĹBIθRAQαĹCIθSȤȡ
PϢABIο⿴顢ARBI
QϢACIο⿴顢ASCI
äơARISϤϱߤܤͳѷ
äơBIC180-PAQ180-40140
//
1119ڡ 0:31:38 49763
CRYING DOLPHIN
ABHȢCAHʤΤBHAHAHCH[]
CAHȢPIHʤΤAHCHIHPH[]
[][]BHAHIHPHBHIHAHPH[ʺ]
[ʺ]ȳIHBPHA90٤ꡢIHBȢPHA[]
Ʊͤ˹ͤȡIHCȢQHA[]
[][]ꡢPAHܳQAHIBHܳICH40١
äƢBICˤơBIC18040140١
夲ƻ衡 1119ڡ 0:50:54 MAIL:Ԥ HomePage:ԤԤ󤹤49764
٥륯åĥ
IAB˲­JȤޤ
ѷPHHI=PJ:JB=AH:BHäƻѷAPHBIHdzPAHIBHƱͤ˳QAH=ICHäƵѤ180-40140Ǥ
ǼΤˤʤ꤫äƤޤޤϤ޷϶Ǥ
1119ڡ 0:52:44 49765
ǯ
PIAȭIQBˤ
PIHIQH
PIIQAIBQʭIQHABH
ʤΤǡPIAIQB
IAPQBI
ƱͤˡQAI=ICP
äƢBIC180-40=140
PAQȤʤ顢BIC180-ȤȤɤγ٤ǤΩΤǤ
1119ڡ 1:11:19 49766
⡼ޥ
#49762 ͤƱ...^^

90+50=140

Ĥαߤ...
90λĤ...90-40=50
Ȥ狼ޤ͢
1119ڡ 1:14:04 49767
ֿء׾ι
90+90-40=140
1119ڡ 1:42:18 49768
Ȥ
ɸA(0,0),B(1,0),C(0,a)
ľBC:y=-a*x+a,ľAI:y=x/a
I(b,b/a),P(b,-a*b+b),Q((a^2-b)/a^2,b/a)Ȥ
tan(40)ϲˡ
trigexpand(tan(a-b))$factor(ev(%,tan(a)=(b/a)/((a^2-b)/a^2),tan(b)=(-a*b+a)/b));
-a*(a^2*b+b-a^2)/(b*(a^2*b+b-2*a^2))(1)
H(a^2/(a^2+1),a/(a^2+1))Ix,yɸȤI礭
b>a^2/(a^2+1) b-a^2/(a^2+1)>0 (a^2*b+b-a^2)/(a^2+1)>0
b/a>a/(a^2+1) b/a-a/(a^2+1)>0 (a^2*b+b-a^2)/(a*(a^2+1))>0
a^2*b+b-a^2>0(2)
(1)tan(40)a,b
a^2*b+b-2*a^2<0(3)
ľCI:y=-(a-b/a)*x/b+a
B̤ľCI˿ľ˸ľ:y=b*(x-1)/(a-b/a)
2ľθ
xɸ:a^4*b/((a^2+1)*b^2-2*a^2*b+a^4)
yɸ:((a^3+a)*b^2-a^3*b)/((a^2+1)*b^2-2*a^2*b+a^4)
θIȤεΥϻʿ
(a^4*b/((a^2+1)*b^2-2*a^2*b+a^4)-b)^2+(b/a-((a^3+a)*b^2-a^3*b)/((a^2+1)*b^2-2*a^2*b+a^4))^2
=b^2*(a^2*b+b-2*a^2)^2/(a^2*(a^2*b^2+b^2-2*a^2*b+a^4))
Υ롼Ȥ(3)Ȥꡡb^2*(a^2*b+b-2*a^2)^2/(a^2*(a^2*b^2+b^2-2*a^2*b+a^4))
b*-(a^2*b+b-2*a^2)/(a*sqrt(a^2*b^2+b^2-2*a^2*b+a^4))줬tanդ
θBȤεΥϻʿ(2)Ȥꡡ
(a^4*b/((a^2+1)*b^2-2*a^2*b+a^4)-1)^2+(((a^3+a)*b^2-a^3*b)/((a^2+1)*b^2-2*a^2*b+a^4))^2
=(a^2*b+b-a^2)^2/(a^2*b^2+b^2-2*a^2*b+a^4)
Υ롼Ȥ(2)Ȥ
(a^2*b+b-a^2)/sqrt(a^2*b^2+b^2-2*a^2*b+a^4)줬tanդ
tan(ľBICIǤǤ٤ʬ)=tan/tan
=-a*(a^2*b+b-a^2)/(b*(a^2*b+b-2*a^2))(1)Ʊ40뤽Ѥ
180-40=140롦()
˭ԡ 1119ڡ 2:22:22 MAIL:fttnm528@ybb.ne.jp 49769
Ȥ
#49769

ߤޤ

>Υ롼Ȥ(3)Ȥꡡb^2*(a^2*b+b-2*a^2)^2/(a^2*(a^2*b^2+b^2-2*a^2*b+a^4))



Υ롼Ȥ(3)Ȥꡡ

>θBȤεΥϻʿ(2)Ȥꡡ



θBȤεΥϻʿ
˭ԡ 1119ڡ 2:34:56 MAIL:fttnm528@ybb.ne.jp 49770

ABH梤PIHʤΤAH:PH=BH:IH
äƢAPH梤BIHʤΤǢPAH=IBH
ƱͤˢQAH=CIH
ʲά
äݤȤºݤˤäΤǤɤˤʤޤ
1119ڡ 12:57:26 49771
Mr.ǥ
IACˤ­DȤ
ͳѷHICD,ͳѷAHQDϱߤܤͳѷȤʤ뤫
CID=CHD=DAQ
Ʊͤˤ
BIP=BAP
BIC=90+(CIDܢBIP)90+(DAQܢBAP)
90+(9040)140
Ȥޤ
1119ڡ 14:38:32 49772
ɥȥ
0:00̲ƤǤޤǤ
#49772
٤Ʊˤʤ餷Ǥ͡
ͤʤ󤫡ֳŪ˺оΤƱˤʤΤ?
٤Ǥ

1119ڡ 17:48:35 49775

⿴ȤäȯǤ
1119ڡ 18:43:51 49776
ޤ
¿ʬ#49762 ͤƱ(^^
somewhere in the world 1119ڡ 23:28:36 49777
Ф
QϢAICο⿴PϢAIBο⿴CBIܢBCI40
äƢBIC140

ޥ뤵¿ͤʤΤǤ͡
äƤޤ
ȥΤƱ褦ʥ꤬ͥ¿ʤäƤޤ
㤤񤷤ΤԻ׵ĤȸԻ׵ġ
1120ʶ 0:31:29 MAIL:hbmath1965@yahoo.co.jp 49778
Shin Koba
񤭹ۤɤΤȤǤ̵Ȼפޤ褯4Ʊ޷ȡƱʻѷĤ䤹18040ΰ̣ܤˤ狼뵤ޤ
1120ʶ 19:27:02 49779
Shin Koba
⿴Ǥ͡ľջѷ˽ľ4Ȥ߹碌ĺ14020٤ջѷ8ȤоФޤ˽񤭹ߤʤäƤĤǤ
1120ʶ 19:31:22 49780
å
⿴ǡ
1121ڡ 20:54:45 49781
ޤ
Τ˿⿴Ǥ͡ orz AP,AQĹƱߤܤͳѷ˵Ťޤ

ΤȤв#49763 鯤οͤޡˤǤ(^^;
somewhere in the world 1123ʷ 21:10:30 49782
ɥȥ
⿴äϤ褯狼ޤ󤬡
򲼤ȡΤǡ
BAP =PIBǤ뤳ȤοǤ
90+9040=140٤μ¤ˤʤޤ͡
1123ʷ 21:56:05 49783
ɥȥ
⿴äƤΤ(ϼ)
1123ʷ 21:58:14 49784