ޥĥ
;ȾڤǤäƤߤޤ
;Ⱦڤ¤٤ơߣࣲ32ߣ2532(3225)ߣ18ꡢг
ȤĹ椬ܣᣱˤʤΤǡ1/85/8
ȤǤ͡
1122ڡ 0:12:06 40005

褦䤯򤱤ޤ
2ʬ񤷤äǤ

#40004
꤬Ȥޤ
̤˷ޤäƤƤʤΤǡĤɤ󤸤ʤȥɥɥƤޤ
ճƤƥۥäȤƤޤ
1122ڡ 0:52:08 40006
Ȥ
ɸǤޤ

BC=a,AB=sqrt(25-a^2)Ȥ
ľPD:y=a*(x-a)/sqrt(25-a^2)+sqrt(25-a^2)
ľPB:y=x
2ľθP,PB=8a
ľAC:y=-sqrt(25-a^2)*(x-a)/aľPBȤθQ
AQĹmaxima ǵ

e1:y=x$
e2:y=a*(x-a)/sqrt(25-a^2)+sqrt(25-a^2)$
solve([e1,e2],[x,y])$
part(%,1)$
rhs(part(%,1))$
rhs(part(%th(2),2))$
factor(%^2+%th(2)^2-64)$
part(%,2)$
solve(part(%,1)^2=part(%,2)^2,a)$
part(%,4)$
a:rhs(%)$
factor(25-a^2)$
sqrt(%)$
factor(%/a)$
e3:y=-%*(x-a)$
solve([e1,e3],[x,y])$
part(%,1)$
factor((rhs(part(%,1))-%th(5))^2+rhs(part(%,1))^2)$
sqrt(%);5/8()
˭ԡ 1122ڡ 1:08:34 MAIL:fttnm528@ybb.ne.jp 40007
CRYING DOLPHIN
BPMACBDθNȤȡBMMP4cmBNND5/2cm
ϢꡢMNAPRA90١
dzQPRQMNȤ()QMNȢQBAˤ
QMNܳQNMQBAܳQAB 90١QAB45 QAB45
NABˤƳNABABNꡢMBNABNݳQBC4545()
äơMBNMB4cmNMNM5/2cmջѷǤ롣
ϡ345ľѻѷ2ĤäĤΤǤ롣
ΤȤ顢MQN345ľѻѷʤΤǡQN5/23/415/8cm
椨AQ5/215/85/8cm

ҤäȤ345ȤʤƤ򤱤롩
ï⤤ʤԳϡ 1122ڡ 1:25:37 HomePage:֥⤢롣40008

ɸǤBA(0,b)C(a,0)Ȥȡa^2+b^2=25(1)
P(42,42ˤľãľǤ뤳ȤãĤμa+b=42(2)
(1)(2)a=72/2b=2/2
AC,BPθQ(72/16,72)A(0,2/2)ʤΤAQ=5/8
޷꤬ʤʤDz򤱤ޤ󡣤äѤ껻ȯۤ˭ʤȻפޤȯۤϺʤ
1122ڡ 5:43:12 40009

ǤQ(72/16,72/16)
1122ڡ 5:47:20 40010

ФФؤǤ
ä񤤤δְ㤤Ǥޤ
ȤȤϡޤ򤷤ơְäˡܤƤޤޤ
ޤ
ϡޤޤäƤޤä褦Ǥ
⤦򤤤Ƥߤޤ
1122ڡ 11:57:23 HomePage:40011
ޥ
졩Ŀͥǡ¸ǤʤʤФ餯Ⱦä㤦Զ礬ȯƤޤ...͡äĴΤǡƱͤä㤤ޤ顢𤯤Ƚޤ

Ǥ˿⹻ͭ̾Υ󥸡ʥѥȤ⤤...ˤǤ٤ߤΤǤɤƤ⸶ۤˤϤʤ餺...ࡣ
iMac 1122ڡ 12:26:28 HomePage:40012
ma-mu-ta
ޥĥƱǤޤʤʬˤΤޤ󤬡

PBCαĹ˿PE򲼤BEPFꡢAC51դȤACGHޤ
ΤȤGEPHPFȤʤޤ
BPADθIBP CDαĹθJȤHIGJαĹθKȤȡIDJKȤʤޤ
BEPFѤϡ88232
ACGHѤϡ5525
BEPFACGH32257ᢤABC4ᢤACD4
IDJKѤϡACGHݢACD425718
1823666ꡢIDJKгϡIJ6
BIJP(BPIJ)/2(86)/21
ABI梤DJI ꡡAIIDBIIJ16
AQI梤CQB ꡢAQQCAIBCAIAD1(16)17
äơAQAC1/(17)51/85/8
1122ڡ 12:39:52 40013
CRYING DOLPHIN
#40012
)ΡǯʾĿͥǡäƤޤ
winXP(SP3)IE8.0
1122ڡ 12:47:35 40014
abcba@baLLjugglermoka
դ8γդ1:7ʬȤꡢΣǤǤѤ50ˤʤ뤳ȤѤBPгȤä顢ѣ褿ΤAB:BC=1:7ȵޤ
51/8=5/8

ʤߤ˾嵭βˡϻȤΤǤ礦?

ɿʬϥ֥򣲤ĤäƤޤΤǡϤ⤦Ĥѥ֥Υ󥯤ɽĥäƤޤ
1122ڡ 12:57:47 40015
uchinyan
Ϥˤϡơϡ
ࡤ콵֤֤ʤΤǴߤäƤΤ񤷤ǤؤȡȤǡ

(ˡ1)
P BC αĹ˿򲼤­ HAD αĹ PH θ EAD PB θ FPR αĹ BC θ SȤޤ
SPH = SDC = CAD = ACB ʤΤǡPDE PSH CABPEDE = PHSH = BCABǤ
ǡBFAPFEPBH ľջѷʤΤǡPE = FEPH = BHǤ
ǡȤȡ
BH = AE = AD + DE = BC + PE * DE/PE = BC + FE * AB/BC = BC + (AE - AF) * AB/BC = BC + (BH - AB) * AB/BC
(BC - AB) * BH = BC^2 - AB^2 = (BC - AB)(BC + AB)BH = BC + AB
PBH ľջѷʤΤǡ
(BC + AB)^2 = BH^2 = PB гȤ = BP^2/2 = 8^2/2 = 32AB + BC = 42
AB^2 + BC^2 + 2 * AB * BC = 32
ǡʿꡤAB^2 + BC^2 = 5^2 = 25ʤΤǡ
25 + 2 * AB * BC = 32AB * BC = 7/2
ꡤABBC ϣ x^2 - 42 * x + 7/2 = 0 βǡޤ羮طդơ
AB = 2/2BC = 72/2
ǡBP ABC ʬʤΤǡ
AQCQ = ABBC = (2/2)(72/2) = 17AQ = AC * 1/8 = 5/8
ˤʤޤ

椫ؤˤʤäƤޤΤǰȤʤʤФͤΤǤޤ
ʤΤǡžơ58 = 4 * 2 345 ȤʤȹͤΤβˡǤ

(ˡ2)¿ʬȤ
BP MAC BD θ O ȤޤO ACBD Ǥ
ϢꡤMO//PDQMO = ARP = 90Ǥ
ǡ
OMB = RPQ = (QAB + QBA) - QRP = (90- CAD + QBA) - 90= PBC - CAD = PBC- OBC = OBM
ʤΤǡOBM OB = OM ջѷǡO BM ˲­ H Ȥȡ
OM = OB = BD/2 = AC/2 = 5/2BH = MH = BM/2 = BP/4 = 8/4 = 2OHB = OHM = 90
ꡤOHBOHM ϹƱǤȤ 345 ľѻѷˤʤޤ
ǡQOM OHM ʤΤǡQOM 345 ľѻѷˤʤꡤ
QOOMMQ = 345QO(5/2) = 34QO = 15/8AQ = AO - QO = 5/2 - 15/8 = 5/8
ˤʤޤ
ͥνȡ 1122ڡ 13:23:21 MAIL:uchi@sco.bekkoame.ne.jp 40016
ޥ
ʤߤ˸ϡAC=PD衢Ǥ
iMac 1122ڡ 13:33:32 HomePage:40017
uchinyan
ǼĤɤߤޤ

#40005#40013#40015
;ȾڤǤäƤߤޤ
Ȥˡֻ;ȾڤפȤΤ̣ʬʤΤǤ
ƱפȤääƤ ma-mu-ta βˡɤǡȤʤ᡼Ǥ褦ʡ
פˡҤäƹͤˡΤ褦Ǥ
ʤʤǤ餷ƤǤ͡
ФϻƤ뤱ɡ#40016οؤ(ˡ1)ˤ̤

#40008#40016(ˡ2)
BP MAC BD θ N Ȥȡ
MBN ȾʬMQN 345 ľѻѷˤʤ뤳ȤȤˡ

#40007#40009#40011#40016(ˡ1)#40020#40022#40023#40025
ؤˤˡ

ʤߤˡ

#40012
亣Ǥ˿⹻ͭ̾Υ󥸡ʥѥȤ⤤...ˤǤ
#40017
ʤߤ˸ϡAC=PD衢Ǥ
ʤۤɡ⹻ʤпؤȤΤǡǤⲿȤʤꤽǤ͡
ͥνȡ 1123ʶ 16:39:36 40018
hirorisuu
ꤽǤ͡ȤˤĥäΤǤ
1122ڡ 17:04:36 40019
⡼ޥ
狼餺...^^;

ͤ...
a^2+b^2=5^2
8-2*a=2*b...8=2(a+b)
2ab=7
x^2-(8/2)*x+7/2=0
(x-1/2)(x-7/2)=0
PQ=5*a/(a+b)=5*(1/8)=5/8
Orz...
ߤʤΤǤٶ
1122ڡ 19:44:19 40020
ʸ
빽˥ԥȤޤ
ꥢ륿ǻääǤ͡
1122ڡ 22:45:37 40021

DAC=Ȥ֤ơACRPľѤAC٥ȥ롦RP٥ȥ=0Ȥʤꡢ򤯡ʬȴؿιȤäsin+cos=5ʬ42롣sin=cosȤξ礬ͤ뤬ѷPQRʤΤŬcos^2+sin^2=1ȤäsincosȤᡢ롣򤯤cos>sinȤξsin=10ʬ΢2cos=10ʬ72sin:cosȤѷQAS(SADBPθ)ȻѷQCBΤǡAQ=5*1/(1+7)=5/8Dz򤤤ȤǤꡢβǹԤcos<sinȤȤʤ礬ͤޤ󤫡äޤˤʤޤ
ϵ塡 1123ʶ 2:01:54 40022
mukku
ԥ饹Ȥޤ
1123ʶ 2:11:09 40023
(Keigei)
#40022
ޤ ABBC ɡABBC ääƤȤȤǤ礦
Τˡʸˡ ABBC פäƤɤȻפޤ
ޤǫƤΤǡܤ˸Ƥ褤褦ʵޤ
1123ʶ 11:44:52 40024
Ф
äȤ򤱤ƬƻѴؿȤޤ
ܣģ£áȤȤȣУĤαĹȣ¤αĹΤʤѤȤˤʤꡢУġ£ġУġ£ġᣵ£С᣸ʤΤǢУ£ĤϣջѷäƢܣУ£ġפȤȣסᣳäƣβˡǣȡᣱάˤäƣѡѣáᣱѡᣵߣᣵȤäƤ򤫤äǤա
1123ʶ 14:03:41 40025
uchinyan
#40022#40024
(Keigei)ƱոǤ
ʤΤȤϡ#40016(ˡ1)Ǥ
䤳ꡤABBC ϣ x^2 - 42 * x + 7/2 = 0 βǡޤ羮طդơ
AB = 2/2BC = 72/2
ȡäȤƤޤ
ͥνȡ 1123ʶ 16:43:33 40026
Ȼ
#40022 ,#40024
ޤ黻ǵȤAQˡФޤ
ؤǤϡAQQCˡФƿޤ˹礦AQ򤹤롢ȱȤȻפޤ
1123ʶ 16:37:42 40027
ϥ饮㡼ƥ
Ǥľ򤹤ΤȤθȤ꤬ǤƤ뤳Ȥ˶äޤ
Ĺ׻䤹ΤФƤޤ
1124ڡ 15:53:35 HomePage:湩ؤ˥40028