ޥ
ߥʤɤ԰¤Ǥ...äƤ𤷤ʤ..(^^;;
PowerBook G4 29ڡ 0:07:51 MAIL:masaru-y@sansu.org HomePage:26625
ߥƥ
tan(ִ)3/4, tan(2ִ)24/7, 顢
ѡ1/23{tan(2ִ)3} 򤴤ˤ礴ˤȡ(
ˤƤ׻ߥ¿ޤԡ||

10ǯȤϡʤ餷ȡġġ
ǤȤޤ(^^)(^^)
29ڡ 0:11:10 26626
kasama
10ǯǤ(O) ǤȤޤ(o^^o)
²λ 29ڡ 0:16:02 26627
Ȥ
ǯǤȤޤϴñǤ

褺դοޤ
ľFE:y=-tan(2*a)*x=-2*tan(a)*x/(1-(tan(a))^2)=-24*x/7
x=-1Ȥy=24/73FD=24/7-3=3/7
AFD=(3/7)*3/2=9/14()
˭ԡ 29ڡ 0:17:19 MAIL:fttnm528@ybb.ne.jp 26628
ai
tan(2ִ)24/7פĤʤä
;򻰳ѷAFEѤFDĹ᤿ɡ׻ݤä
29ڡ 0:20:43 26629
ݤ
ǯʤơ

Ƹɡ 29ڡ 0:27:53 MAIL:hopes@mba.ocn.ne.jp HomePage:ȣϣУţӤ褤Ȥ٤Ϥ26630

ѤΣʬˤѤδطȤäƤ׻ߥ
ʤʤ10̰ˤޤ󡣳󤹤Ǥ
URL:http://gtrambler815.blog9.fc2.com/
29ڡ 0:31:52 26631

£αĹȣţƤαĹФȤȡУУšᣳȤʿǡУ¤ĹޤȤǡʿϤäѤƻ
29ڡ 0:44:36 26633
CRYING DOLPHIN
˲򤱤ʤ
Ǻ硢ѤʬѤƢFCEդ椬7:24:25
ͤߤƤȤꤢФ

ŪˡͤƤߤΤΡʤʤˡפĤʤ
ABE345ľѻѷ餳Ѥɡ

ȤꤢADαĹEFȤθPȤȡPAE
345ľѻѷΤջѷǤ뤫顢
AEPA425PA25/8äDP1/8
FDPȢFCEDPCE18DF373/7ʰʲά

󤴤ꤷƤɶᣲʬDz򤱤

ǯǤȤ
ǯԥ奦ȡ 29ڡ 1:13:34 HomePage:ȤƻȤ26634

A̤FEʿԤľBCȤθIADEFθJȤޤAI=EIͳѷAIEJϤҤAEIJθHȤȡAHJϢEBAAH=5/2cmAJ=25/8cmDJ=1/8cmFDJȢFCEˤDF=3/7cmADF=9/14cm^2
29ڡ 1:23:54 MAIL:kaitoexe@green.livedoor.com HomePage:ȤΤ󤹤ؽĢ26635
ako
10ǯǤȤޤ1997ǯ11黲äƤäƤޤ򤱤ʤ⤿󤢤ޤ٤ޤ³줿ΤϡʤȤäƤڤǤ줫⡢,빹򤿤ΤߤȻפäƤޤĤ⤢꤬Ȥޤ
29ڡ 1:26:32 26636
Chiba
ŤȣãƤθ͡ƤŤؿŤȤθΤȤ
ţã͡ţΣơƣΣͤã͡ţáţ͡ᣳ
ƣ͡ƣΡͣΡᣵΣơţΡᣳ
ţΡţ͡ܣͣΡᣵܣͣΡΨη׻顡ƣ͡᣷
ƣáᣲƣġᣳӣƣġ᣹
ľѻѷη׻ΤߤDzǽ
29ڡ 1:37:07 26637

ADαĹFEθAE˿򲼤ˤDADαĹFEȤθޤǤĹɤȹͤƤޤ
29ڡ 3:23:18 26638

󤵤äơ줵äƤȤʹƤߤʤơ󤼤̿ͤǤˤʤʤߤͤShin.kŪʤǤ
29ڡ 3:34:28 26639
£
10ǯ
Tokio 29ڡ 6:46:29 MAIL:fv2f-ftk@asahi-net.or.jp HomePage:BossF'sToy Box26640
ϥ饮㡼ƥ
Ϥ褦ޤ

Tangent2ܳѤθǤ
̶彣 29ڡ 6:57:37 HomePage:ĩ26641
(ա)Ρ
http://ccfa.info/cgi-bin/up/src/up24235.jpg
ʴǢУŤäƣšᣵ
нФƣƽФƣƣнФƣУǽФƣãƽФ
ƣĽФޤǯǤȤޤ
29ڡ 8:14:21 26642
mhayashi
10ǯǤȤޤTVǥʥƱä

ǡä10ǯʤޤ֤oržǡ61Τ褦ˡ˲򤭤äǤޤޤǤ
AE򼴤ޤ֤ȽŤʤʤäʬϻѷADFȹƱʤ褦ǤFAE=45٤ʤΤˡ
29ڡ 8:25:47 HomePage:M.Hayashi's Web Site26643
⡼ޥ
10ǯ
365/7=521
10/4=22
Ǿ52*10+2=522 䤢äƤ⤤ϤǤ͡
 skip ȤƤ⡢522-10=492 󡦡

ϡ錄ˤϿ޷Ǥפä
3a+(3+a)/2+3*9/8-3/8=6
a=3/7
Ѥϡ3/7*3*1/2=9/14
29ڡ 8:40:20 MAIL:kennji72001@yahoo.co.jp 26644
ͧοʺ
10ǯǤȤޤ̵̾ϡפäƸդ
ޤĹȤ¿˻轵ꤷĺϫ
ǡФ꤫һפޤͤ⺣ǯ68Фˤʤޤ
ޥ뤵餱ʤ褦ĥ¸ǤȤ
Į 29ڡ 8:52:21 MAIL:tanioka-s@ams.odn.ne.jp 26645
kazsyun
10ǯǤȤޤ1ǯäȤλäǤʬʾ
Ƭ򤵤ƤäƤޤ
29ڡ 9:30:44 26646
2709
CE+EF:CF=4:3ˤʤΤλѷʤǤ͡ޤ狼ޤ͡ʤƤǤ
ѥˤޤäƤ롡 29ڡ 9:36:50 26647
uchinyan
[ʤְ㤤ޤǽϰϤǽޤ]
Ϥˤϡ
ޤϡ10ǯǤȤޤǤ͡줫⵹ꤤפޤ
ơǤ
ī򸫤ƤˡѴؿܳѤθȤäơƬϽФޤ
θ塢餷ˡġιͤˡ񤭤ޤؿؤδ֤餤Ǥ礦

(ˡ1)
¤ϰֶϫΤǤֻ餷⡣
AD D ˱Ĺ EF Ȥθ P ȤޤˡP AE ˿򲼤Ƥ­ H Ȥޤ
ȡAP//BE ꡢPAE = AEB = PEA ʤΤǡPAE PA = PE ջѷǤ
ǡPAH PEH ǡ٤δط顢λѷ AEB Ǥ
AEB 345 ľѻѷ AE = 5cm ʤΤǡAH = EH = 5/2, PA = PE = 5/4 * AH = 25/8 ˤʤޤ
ǡDP = AP - AD = 25/8 - 3 = 1/8 ˤʤޤ
ơ餫 FPD FEC ǤǡFDFC = DPCE = (1/8)1 = 18FDDC = 17 ǡFD = 1/7 * DC = 3/7 cm ˤʤޤ
äơADF = 1/2 * AD * FD = 1/2 * 3 * 3/7 = 9/14 cm^2 ˤʤޤ

Ѥߤޤ󡣰ʲĤβˡϡաޤ餹ΤǤŪˤȴޤ
ǽϰϡ䤤ޤ

(ˡ2)
ޤǤ줰餤ʤвȤʡǽ˻פĤޤȾ⤦ޤǤʤʤ
EF F ˱Ĺ A 򲼤Ƥ­ H Ȥޤ
[Ūȴޤ
H ΰ֤ EF F αĹȲꤷƤޤաޤ餹ȻפޤŪˤϡڤ٤ȤǤ
H EF δ֤ˤϡʲε AH = 3cm ƱͤΩޤ
FE ϡդ餹ȡFC Ȱפ뤳Ȥ̵FC ˴ؤ E ¦A ȿ¦ˤΤǡ
AH FC Ȥϸ X AH > AX > AD = 3cm ̷⤷ޤ
H F ˰פϡƱͤˤ AH = 3cm ޤ⡢ADF ľѻѷǤ뤳Ȥ̷⤷ޤ
äơβǤ]
ޤAHE, ABE ˤơ
AHE = ABE = 90١AEH = AEF = AEBAE̤ʤΤǡAHE ABE ˤʤꡢAH = AB = 3cmEH = EB = 4cm Ǥ
ˡAFD, AFH ˤơ
ADF = AHF = 90١AF̡AH = 3 = AD ʤΤǡAFD AFH ˤʤꡢFH = FD ǤǡEF = EH - FH = 4 - FD ˤʤޤ
ǡAE CF Ȥθ P Ȥޤ
EFC ˤơCEA = FEA ʤΤǡECEF = CPFP ǤEC = 1, EF = 4 - FD Ǥ
ޤEPC EAB ʤΤǡCPBA = ECEB = 14 ȤʤꡢCP = 1/4 * BA = 3/4, FP = FD + (DC - CP) = FD + 9/4 Ǥ
ǡ1(4 - FD) = (3/4)(FD + 9/4) ˤʤޤ줫顢FD = 3/7 cm Ȥʤޤ
äơADF = 1/2 * AD * FD = 1/2 * 3 * 3/7 = 9/14 cm^2 ˤʤޤ

(ˡ3)[(ˡ2)ȤδطΤˤ뤿ˡȾ񤭴ޤ]
ƱޤǤϤꡢȾ˰칩ߤΤɡ
BE EP = EF Ȥʤ褦 P ȤꡢP F Ȥ AE Ȥθ Q Ȥޤ
[Ūȴޤ
P ΰ֤ BE δ֤ˤȲꤷƤޤաޤ餹ȻפޤŪˤϡڤ٤ȤǤ
ʲεƱͤˡAPE AFE ޤĤޤꡢP F Ȥ AE ˴ؤоΤǤ
ǡ(ˡ2)Ʊͤ A EF ˿򲼤Ƥ­ H ȤȡH AE ˴ؤоΤ B ˤʤޤ
(ˡ2)εǡH EF F αĹˤ뤳ȤʬޤϡP BE ˤ뤳Ȥбޤ
äơβǤ]
EFP ջѷǡPEA = FEA ʤΤǡAE PF Ȥľ򤷤ޤޤAPE AFE ⤤ޤ
ǡAP = AF ʤΤǡABP = 90 = ADFAB = AD ꡢABP ADF ǤǡEF = EP = EB - BP = 4 - DF Ǥ
ơAE CF Ȥθ R Ȥޤ
餫ˡEFQ, EAB, ERC ǡ345 ľѻѷǤ
ȡEFQ, FRQ ˤơ
EQF = 90 = FQR, EFQ = 90 - FEQ = 90 - CEQ = CRE = FRQ ʤΤǡEFQ FRQ Ǥ
ĤޤꡢFRQ 345 ľѻѷˤʤޤ
ǡEFQ ˤơFQ = 3/5 * EF = 3/5 * (4 - DF)FRQ ˤơFQ = 4/5 * FR = 4/5 * (DF + DR) ˤʤޤ
DR = CD - CR = 3 - 3/4 * CE = 3 - 3/4 = 9/4 ʤΤǡɡ3/5 * (4 - DF) = 4/5 * (DF + 9/4) Ǥ
줫顢DF = 3/7 cm ˤʤޤ
äơADF = 1/2 * AD * DF = 1/2 * 3 * 3/7 = 9/14 cm^2 ˤʤޤ

[ɲ]
(ˡ4)#26654˿ȯ줿ˡǤ
AFD AFHFH = FD ޤǤϡ(ˡ2)ƱǤ
ǡAFH F A ˡA F ˡŤͤ褦ˤҤä֤ޤΤȤ H ΰư K Ȥޤ
ȡKADF ĹǡKBEF KF//BE ˤʤޤѤͤȡ
KBEF = 1/2 * (KF + BE) * CF = 1/2 * (3 + 4) * (DF + 3) = 7/2 * (DF + 3)
KBEF = ABEH = AHE + ABE = 2 * ABE = 2 * 1/2 * BE * AB = 2 * 1/2 * 4 * 3 = 12
ǡDF = 3/7 cm ˤʤޤ
äơADF = 1/2 * AD * DF = 1/2 * 3 * 3/7 = 9/14 cm^2 ˤʤޤ
[ɲý]

ˤ衢ʲˡꤽǤ͡
ͥνȡ 212 12:50:25 MAIL:uchi@sco.bekkoame.ne.jp 26648
uchinyan
Ǽġɤߤޤٶˤʤޤ
[#26648(ˡ2)ڤ(ˡ3)ϡŪȴޤǽϰϤ­ޤ]

#26626
ޤѴؿܳѤθΤäƤС줬Ǥ͡ˤȤäƤȤǤ顣
#26628
ľѤ¿顢ɸȤΤ⼫Ǥ͡
#26629
ʤۤɡѴؿǤ⡢ޤ͡
#26631
ǤϤ褯ʬʤ
ѤʬȤäƤ뤫顢#26648(ˡ2)θȾäݤΤͤΤ
Ȥ⡢#26633äݤΡ #26634Ⱦ
#26633
ʤۤɡͤ⤢Τ
ʤʿϡѴؿɸϻ˶ᤤǤ礦ޤǤϤʤǤ ^^;
#26634
Ⱦϡ#26648(ˡ1)Ʊ
Ⱦϡ̤βˡʤΤʡ ǤϤ褯ʬʤ
#26635
ʤۤɡ#26634θȾΰήǤ͡ȾʬˤΤ#26634θȾʡ
#26637
ʤۤɡտޤȤϰ㤦褦ʵ⤷ޤ#26648(ˡ3)ˡͤȤϡƤޤ͡
#26638
ϡ#26634θȾȡäơ#26648(ˡ1)ȡƱǤ͡
#26641
ϡ#26626Ʊ
#26642
ʤۤɡ򤤡 ࡢʤʤǤͤ ^^;
Ф F ϡοޤ˺ǽ餫餢 F Ȥ̤Ǥ͡ǽ麮𤷤ޤ
#26643
FAE = 45 ʤΤդʤä
Τˡ AD = 3, DF = 3/7, AF = sqrt(3^2 + (3/7)^2) = 15/7 * sqrt(2), EF = 4 - DF = 25/7, AE = 5 顢
cos(FAE) = (AF^2 + AE^2 - EF^2)/(2 * AE * AF)
= (450/49 + 25 - 625/49)/(2 * 5 * 15/7 * sqrt(2))
= 1050/(10 * 15 * sqrt(2))
= 1/sqrt(2)
Ǥ͡ࡢΤ˲˻Ȥʤʡ
#26644
a = DF ʤɡˤμǤϡͤ䤹Τ񤷤
[ɲ]
#26648(ˡ4)פդơʬޤAE CF Ȥθ P Ȥơ
1/2 * KBEF = 6 = KADF + FCE + ADP - PCE = 3 * a + 1/2 * (3+a) * 1 + 1/2 * 3 * 9/4 - 1/2 * 1 * 3/4
Ǥ͡
[ɲý]

ĿŪˤϡ#26642ޤǤȯۤǤΤʤ
ͥνȡ 212 12:52:28 MAIL:uchi@sco.bekkoame.ne.jp 26649
󥷥
ˤ
ؿذʹٶƤʤΤǡǤ򤱤ޤ
ȤꤢABEAEޤ֤ȢADFȹƱʻѷǤʢABFˤΤǤȤ档
ߤʤβˡ򸫤Ƥȹ⹻ؤ⤦ɤʤʤޤٶȤ褫ä
29ڡ 18:20:47 26650
ã
#26637 μ­Ǥ
ŤȣãƤθ͡ƤŤؿŤȤθΤȤ
£šţã͡ţΣơƣΣͤ
£Ťϣľѻѷã͡ţáţ͡ᣳ
ƣ͡ƣΡͣΡᣵΣơţΡᣳ
ţΡţ͡ܣͣΡᣵܣͣ
ƣΡͣΡᣴᣱ
ΣơܣͣΡᣳᣱ
ƣΡᣱƣΡᣱ
ƣ͡ƣΡᣴƣ͡᣷
ʾΨη׻ƣáƣ͡ܣã͡᣷ܣᣲ
ƣġƣáݣãġᣲݣᣳӣƣġ᣹
ľѻѷη׻ΤߤDzǽ
210ʶ 0:35:40 26651
jiji
tono
210ʶ 4:52:54 26652
ͤΤ
£žˡţСţơȤʤФȤꡢƣФȣŤθѤȤȡ£ТᢤģŤơܣУơ᣹ˤʤΤǡѣƤľջѷУѣŤϣľѻѷ顡ѡѣšᣳǤšᣵ顢ѡУơƣäν˵ޤ񤷤ʤ26642βޡȤǤ͡
210ʶ 18:08:55 26653
ޤ륱
ޤΤ褦ǤβˡǤ

ǡѡפȤޤ֤Ǥ硪ȤȤǡ
ѷ£ŤŤ򼴤ޤ֤ޤ
ȡѷƣĤƱѤλѷ'ƤǤޤľѤȣդ
ޤĤȣŤ֤ȡѷƣĤΣѤλѷƣģŤǤޤդ̤ǹ⤵
ΰ־ʡѷƣģŤѤڣۤȤȡΤѤϡ
£ãġܻѷģãšܻѷƣģšܻѷƣ+ѷ'
᣹ܣܡڣۡܡڣۡܡڣ


ڣۡᣳڣۡᣳڣۡ᣹

ڡۤäƷߤɡǶλǤϡʤ⤢餷Τǡ

ϤȤ⤢졢ǯǤȤޤ
210ʶ 18:54:50 MAIL:take4310@mobile.email.ne.jp HomePage:ޤ륱26654
tomh
10ǯǤȤޤ
(*^^)//:*:',:*:,:*:' ѥѥ

轵顢ޤʰ⤬Ƨ߽Фޤ͡
(?)Ǥ¤礷Ƥޤͤ (^O^)
ԡ 210ʶ 21:59:15 MAIL:tomh@yahoo.co.jp HomePage:H to M26655
ʤ
ǯǤȤޤ
Ĺ褦û褦ʣǯǤ
ĤޤǤ³ޤ褦ˡ
̹񡡡 210ʶ 22:09:10 MAIL:naka@sansu.org HomePage:naka's Home Page26656
2709
265򻲹ͤ˹ͤޤͤ457󤫤ûǤΤޤƤäƤޤ
ɶ츩ѻǵܻԲĮΡ 210ʶ 22:15:47 26657
ӥȥ꡼
Ϥޤ֤ʤΤǤϤʤǤ礦ʲ򲼤Ρ

345ѤơϢΩ򤱤Хե˥åȤäȤǤ礦

10ǯǤȤޤ
210ʶ 22:25:07 26658
ȥȥ
˻Ƥä˺ƤޤϣãĤλˤΤƱǤ
٤ߤˤʤäΤǤ٤ߤȹ˺뤳Ȥ¿ʤޤ
Żȵ𤷤ƥ᡼åʤɤ򤷤ƤȤ礦ɹ֤ˤʤΤǡ
ʼ˸лԡ 210ʶ 23:16:24 MAIL:h-sakai@zb3.so-net.ne.jp 26659
ȥȥ
10ǯǤȤޤ
2000ǯ1λäʤΤǴ5ǯвᤷ6ǯܤǤ
ǶϹ˺줿ꡢФƤƤ⤹ˤ᤿Կ
ǤȤꤤޤ
5ǯ֤Ӥ򿶤֤ȡ2000ǯʿѽ57̡ˡ2001ǯ43̡
2002ǯ30̡ˡ2003ǯ33̡ˡ2004ǯ43̡ˡ2005ǯ55̡
1̤102̤53̤9
ʼ˸лԡ 210ʶ 23:27:18 MAIL:h-sakai@zb3.so-net.ne.jp 26660
粬ҹ
ǯǤǤȤޤʡˡǯ³Ϥʤʤޤ󤫤ʼʬˤȤäơˡǤ͡ΣȣФƸ褿ϥꥮꣲäǤᤤǤ͡
ʤߤ˺ϣȤƨޤǻŪʲˡ˥󥸤ޤʡ
ɤΰΨϤޤ
211ڡ 10:40:20 MAIL:toshi009@land.hokuriku.ne.jp 26661
uchinyan
#26653, #26654
뤵Ȥ򤤤ȡɤ⡢#26648(ˡ2)ڤ(ˡ3)Ʊ꤬Ȼפޤޤϡޤ餫ǤȤơ
#26653
PAF = 90 򤦤ޤȤäƤޤ͡
ࡢǤ˵դʤäΤ𤱤ʤȿʡ
ʤβˡϡϻȻפޤ衣
#26654
ڡۤϡĿŪˤȻפäƤޤΤˡ٤Ϥ̤ο x ƳʤȤ⡢ޤȤDz򤱤ƤޤΤǡ
ȤäƤΤȡ򤷤Ƥޤ
⡢ FD, FC ʤɤΤ¿ǡľܤѤ򰷤ä򤤤Ȼפޤ
ࡢⲿǵդʤäΤ𤱤ʤȿʡ
ͥνȡ 211ڡ 17:44:07 MAIL:uchi@sco.bekkoame.ne.jp 26662
2709
ϲĤ餤λȤäƤΤǤͤϣĤǤ㸽ߤޤʪΤߡ
ѥˤޤäƤ롡 211ڡ 21:55:54 26663
2709
ĤȤϻ졡򣳡ϲδۡߤäαȡοػ˥󥸡ƻ졡ԥԥǤ
ʼ˸ܻԲĮΤɤäȤ𡡡 211ڡ 22:39:56 26664
2709
ǣǯǤ͡ǤȤޤ
ʼ˸ܻԲĮΤɤäȤ𡡡 212 0:03:38 26665

ǯǤȤޤǯäƤʤƬޤ줫⤬ФäƤ
212 2:14:12 26667
QJ
ޤ#26642οޤäƤ
Ǥˡˤʤ롦Ǥ
ФΤȤ꤫ٶƤޤ󤫡
212 7:29:08 26668
uchinyan
#26668
䤹ޤ#26642οޤäƤ
졩ۥȤ㴳⤢ä褦ʤΤǡѨۤʤ顢򤷤ϰϤǺƸƤޤ礦

ޤEF F ˱ĹˡA ̤ä EA ˿ľơθ P Ȥޤ
P ϡդ顢AEF + AEB ԳѤʤΤǡAD ˴ؤ BC ȿ¦ˤޤ
ޤ餫ˡCF ˴ؤ E Ȥȿ¦ˤޤդꡢEAB ϱԳѤʤΤǡAB ˴ؤ F ʤɤƱ¦ˤޤ
ǡP ̤ä AD ʿԤȡAB A ؤαĹCD D ؤαĹȤΤ줾θ
F', G Ȥ뤳ȤǤޤ
ʤ#26642ǤϡAF, FP ȤޤĤ F ϡǤ F' δְ㤤Ȼפޤ
ơPAF' = 180 - PAE - EAB = 180 - 90 - EAB = 90 - EAB = AEB = AEF դȡ
PAE, PF'A, ABE ǡ345 ľѻѷǤˡAE = 5cm Ǥǡ
AP = 3/4 * AE = 3/4 * 5 = 15/4
AF' = 4/5 * AP = 4/5 * 15/4 = 3
F'P = 3/5 * AP = 3/5 * 15/4 = 9/4
PG = F'G - F'P = AD - F'P = 3 - 9/4 = 3/4
ˤʤޤĤޤꡢF'ADG ABCD ȹƱǤ
ơF'G//AD//BE դȡFGP FCE ʤΤǡCFGF = ECPG = 13/4 = 43 Ǥ
ޤGF + CF = CG = BF' = BA + AF' = 6 ʤΤǡCF = 4/7 * 6 = 24/7FD = CF - CD = 24/7 - 3 = 3/7 cm Ǥ
äơADF = 1/2 * AD * FD = 1/2 * 3 * 3/7 = 9/14 cm^2 ˤʤޤ

βˡ򤤤ΤϡۤäȰճäΤȡޤĹ֤˵˹Ԥ夤ƤޤʡȻפäǤ
ʲˡ·äƤߤȡ#26648(ˡ2)ڤ(ˡ3)ǵˤޤ餫ȤƤޤС
AE ˴ؤоΤͤĤβˡȤƤľʤΤΤޤ͡
ͥνȡ 212 20:58:14 MAIL:uchi@sco.bekkoame.ne.jp 26669

ԥ饹δطȤäƲ򤭤ޤ(׻ؤ)
ڲˡ
ADαĹFEθGȤ
FDGȢFCEˤƢFDG=FCE (90)DFGCFE ()äƭ顡FDGȢFCEǤ롣
ǡFD=x,DG=y Ȥȭδط
(x+3)1äƣ/(x+3)
ĤˢGAEܤ
AEBEAG (AGBEʿԤ椨)
GEAAEBդ
äơEAG = GEA 椨 GAEGA=GEբǤ롣
FCEˤ3ʿȤȡ
(x+3)^2 + 1^2={ (x^2+y^2)^0.5 +(y+3)}^2
ꡡx=3/7
FAD=(3*3/7)/2=9/14 cm^2

213ʷ 19:33:05 MAIL:sokurates2001@yahoo.co.jp 26670

ǯǤȤޤ
ʤꥵܤ꤮ߤǤ줫ФޤΤǡ
213ʷ 20:18:04 26671
ham
ΥȤϤƸ򤫤äΤǽ񤭹ޤƤޤ
ܰλѷջѷĤޤ
A̤EFʿԤľBEȤθGȤGAEˤ­HȤ롣ǣȣŢ梤£Ťդϣ
ޤGAEFEAGEA颤GAEջѷʤΤHE5/2
äBGBEGE4-5/24/57/8
ABG梤FCE(դ٤ʿ)ʤΤ
DF=CF-CD=ABCE/BG-CD=31/(7/8)-3=3/7
ä33/71/2=9/14
Ĺʸ餷ޤ
215ʿ 0:45:28 26672