kasama
ޤƤǤȤޤǯꤤޤ
Τ褤Ȥڤƴ򤷤Ǥ(^_^)
110ڡ 0:09:44 40157
ߤ뤯
褯ͤ餿Υͥ饦ä
110ڡ 0:23:05 40158
Ԥ뤹
ޤƤǤȤޤ
ɲ򤱤Ƥ褫äġw
110ڡ 0:27:02 40159
Mr.ǥ
ǤȤޤǯꤤޤ

BDD'C,PCȤθ򡡤줾졡E,FȤ
BEED67EFFDCECDCE:CE'713
äơBDFD26091
QRQFFR7*7/20ˡ7*91/260ˡ49/10
ȵޤ
110ڡ 0:39:06 40160
tomh
ǯꤤޤ m(__)m
ԡ 110ڡ 0:40:59 MAIL:tomh@yahoo.co.jp HomePage:H to M40161
abcba@baLLjugglermoka
BDCD'θEȤСED'BECDʤΤCE:ED'=7:6ꡢEP=49/13BDCPθFȤEF:FD=7:13ꡢRQ=(49/13)+(7-49/13)(7/20)=49/10Ȳ򤭤ޤ
110ڡ 0:47:08 40162
ߤ뤯
ADCD'
CPDB϶ʬ
QR
ѷDD'CΥͥ饦7:13äƤ
7*7/20*2=49/10
110ڡ 1:10:10 40163
ʸ
ޤƤǤȤޤ

٤ޤǤ
110ڡ 1:17:26 40164
ma-mu-ta
CPQRθEȤޤ
DD'򼴤ȤƢCDD'ޤ֤CΰưC'Ȥȡ
BD'AC'ϰľȤʤꡢBC'6713
CEC'EDEBEDCBC'713
QED'C'REAB7(713)720
D'C'AB7ꡢQERE77/2049/20
QR(49/20)249/10

110ڡ 3:56:09 40165

βˡ
ޤADαĹD'CαĹSȤSAD'梤CBD'
SA=SD'7/6
BDQRθTȤ
QTCRTDϹƱջѷǤꡢ
QC=QTRT=RDǤ뤫
SQRμĹ(77/6)249/3
ޤCBD'μĹ20
ǡCBD'梤SQRǤꡢ2049/36049
äƵĹxȤ
60:496:x
ä
x4.9
110ڡ 3:56:33 HomePage:40166

ޤƤǤȤޤ
ǯꤤޤ
110ڡ 3:57:53 HomePage:40167

ޤƤǤȤޤ
ǯ٤ƻǡȻפäΤǤǽ餫غɸǤ
ʣˣġʣᡥˤȤãġǤȣĤθšãĤƤȤȣšʡݣ᡿⡿ˡơʣ᡿ݣ⡿ˤȤʤꡢ줫颤ţѣҤȢţãĤ椬ѣҡãġ᣷ѣҡᣴȤʤޤ
110ڡ 11:30:53 40168
uchinyan
Ϥˤϡơϡ
ĿŪˤϥ륹äȲ򤱤ޤ㴳̵̤Τʤʴǡ

CD' BD θ EBD CP θ FDD' QR θ SȤޤ
ABCD ϤҤʤΤǡD'BE = CBED'ECE = BD'BC = 67Ǥ
ǡCECD = CECD' = 713 ˤʤꡤECF = DCFEFDF = CECD = 713Ǥ
ˡQR//CD ꡤEQQC = EFFD = 713Ǥ
ꡤD'ECE = 67 = 120140EQQC = 713 = 4991D'QQC = 16991 = 137Ȥʤäơ
BA//QR//CDARRD = D'SSD = D'QQC = 137AD' = AB - D'B = 7 - 6 = 1 cmꡤ
QR = QS + SR = CD * D'Q/D'C + AD' * DR/DA = 7 * 13/20 + 1 * 7/20 = 98/20 = 49/10 cm
ˤʤޤ

ǸդϡCD' αĹ DA αĹθ T ȤơTQR TCD ǹͤƤ⤤Ǥ͡
Ⱦη׻޷Ūˤ⤦ñˤǤʵ⤷Ƥޤ
ͥνȡ 110ڡ 12:10:27 MAIL:uchi@sco.bekkoame.ne.jp 40169
uchinyan
ǼĤɤߤޤ
ʲˡΤǤ͡¤ϡޤڤƤʤˡ⤢ޤ

#40158#40163
ADCD' CP DB θ QR ͥ饦 713ȤƷ׻ˡ

#40160
BD D'CPC Ȥθ򤽤줾 EF Ȥ
EFFD = 713BDFD = 26091 ơQR = QF + FR ȤƷ׻ˡ

#40162
㴳­Τ褦ʵ⤷ޤ (ʤȤϳǧƤޤ)
BD D'CPC Ȥθ򤽤줾 EF Ȥ
CEED' = 76EP = 49/13EFFD = 713 ơQR ׻ˡ

#40164
Ǥ
Ȥˡܺ٤

#40165
CP QR θ E ȤDD' 򼴤Ȥ CDD' ޤ֤ C ΰư C' Ȥȡ
BD'AC' ϰľȤʤ뤳ȤȤˡ

#40166
AD αĹ D'C αĹ S Ȥơ
SAD' CBD' CBD'SQR μĹ׻CBD' SQR ˡ

#40169
CD' BD θ EBD CP θ FDD' QR θ S Ȥơ
Ѥʬ򷫤֤ȤäơQR = QS + SR ȤƷ׻ˡ

#40168
ؤˤˡ
ͥνȡ 110ڡ 13:55:29 MAIL:uchi@sco.bekkoame.ne.jp 40170
⡼ޥ
...
⿴...⤵h...h^2=(7+7/6)^2-(7/2)^2 ȡ{2*(7+7/6)+7}*r=h*7
7*(h-r)/h Фޤ...˿ ^^;...Orz
110ڡ 14:14:23 40171
Ĺ
󤯤餤顢60ΥȤƱˡ꤬ΤǤ
Ϥޤޤġ 110ڡ 14:23:34 HomePage:åλؤ40172
Ȥ
ɸD'(-a/7,6*sqrt(49-a^2)/7),C(0,-sqrt(49-a^2))Ȥ
CD'=7aͤDD'C̤xθ
̤극ABľľD'D,ADȤθQ,R
εΥ maxima ǵ

solve(factor((-a/7)^2+(6*sqrt(49-a^2)/7+sqrt(49-a^2))^2-49),a)$
a:rhs(part(%,2))$
rhs(part(solve(0=rhs(part(solve(3*sqrt(49-a^2)/7=k*(a-a/7)/2-sqrt(49-a^2),k),1))*x-sqrt(49-a^2),x),1))$
e1:y=sqrt(49-a^2)*(x-%)/a$
e2:y=-13*sqrt(49-a^2)*x/a-sqrt(49-a^2)$
e3:y=-sqrt(49-a^2)*x/a+sqrt(49-a^2)$
part(solve([e1,e2],[x,y]),1)$
part(solve([e1,e3],[x,y]),1)$
sqrt(expand((rhs(part(%,1))-rhs(part(%th(2),1)))^2+(rhs(part(%,2))-rhs(part(%th(2),2)))^2));49/10()
˭ԡ 111ʶ 9:01:33 40173
Ϸʼ
ʲˡޤ͡
ϼΤ褦ˤƤߤޤ
DACD'αĹ򺹤MȤޤ
BDCPθNȤޤ
MN̤äCDȸ򺹤OȤޤ
CMDջѷǤ
CNDջѷǤʳѤʬ
衡PCDǤ
MA=AD'AD(CD-AD')=7/6
ѤʬѤ
QR=CDMNMO=49/10
MNMO=MD(MDCD2)
112ڡ 11:50:00 40174
???
ǯޤƤǤȤޤǯꤤޤ
ģ'ݣãФǤʤƤ⡢4.9cmˤʤޤ͡
112ڡ 13:14:27 40175

ä줿(

ޤäƻѷѤƥꥴ׻Ƥޤ4459/780ȤФƤˡŪäꤷ49/10ˤʤޤ
ϵ塡 112ڡ 13:48:06 40176
ϲ
ޤƤǤȤޤ
112ڡ 16:21:16 40177
Ȼ
ޤƤǤȤޤ
CD' BD θ EBD CP θ FBC QRαĹ θ G Ȥޤ
CQGQCFRFDסջѷʤΤǡFR=RD=GC=QC=QF QR=2*QC
ED'B梤EQF梤ECDD'EEC= 67 EC=D'C*7/13=49/13
EQQC=EQQF=ECCD=49/137=713 QC=EC*13/20=49/20
QR=2*QC=49/10 Ȥޤ
112ڡ 19:13:08 40178
粬ҹ
פ֤ޤϽſȴ㤤⿴ȤѤܤߤȾ¤ФƳޤʲɤ
116ʿ 18:26:32 40179