鯤ο
AB^2=BH^2+AH^2ʻʿ
=BH^2+BH*HCʢABH梤CAH
=BH*(BH+HC)
=BH*BC
=BQ*BPʢQHCPƱ߼Σ顢٤
=4*(4+5)
=36
AB=6
1129ڡ 0:23:17 47766
Mr.ǥ
¡£ȡᡢ£á⡡Ȥޤ
ܣѣȣ¡ܣѣУáͳѷѣȣãФϱߤܤ
٤
£ѣ£С36
£Ȣ梤ã£

衡x^2=ab=36
x>0
¡6
Τ褦˲򤭤ޤʺϤ䤵äǤ͡
1129ڡ 0:27:33 47767
baLLjugglermoka
ABQ梤PBAǤ͡ȼǤǶ֤ʬ٤ΤϲտޤǤ
1129ڡ 0:27:51 47768
䤿
٤ΤҤɤ
1129ڡ 0:33:10 47769
٥륯åĥ
10ʬ٤ǤȤꤢι塢ʸɲä줿褦ʤΤǡ˻̵ƹƤ줿ΤȻפޤ

£ȡ49£
£ȡߣ£á36
¡£ȡ£á
¡ߣ¡£ȡߣ£á36
äƣ¡6
񤷤äɤʤȤǤβˡפĤޤ
1129ڡ 0:55:50 47770
ޤ
1ְ˰ȯǤ(^^;

BHQ梤BPC(2
BH:BQ=BP:BC
BHBC=BQBP=4 x 9=36 ĭ
ABH梤CBA(2
AB:BH=CB:BA
ABBA(AB)=BHCBĭ
ꡡABAB=36
äAB=6

ơ1076ŷˤٶäȡ
somewhere in the world 1129ڡ 1:04:59 47771
ǯ
BHCBPCʤΤǡBQ:BH=BC:BPΤˡBH*BC=4*(4+5)=36
ABHCBAʤΤǡAB:BH=BC:ABΤˡAB*AB=BH*BC=36
äơAB=6 cm

ߤޤ ٥륯åĥ#47770䡢ޤ󤵤#47771ȤäǤ

1129ڡ 1:21:17 47772
⡼ޥ
ꤢä˺Ƥޤ...^^;
ס˲򤱤ƴ򤷢

AH/BH=HC/AH
BH/4=9/BC
BH(BC-BH)=AH^2
36=BH^2+AH^2=AB^2
so...
AB=6
1129ڡ 1:34:21 47773
ޤ
#47770 ٥륯åĥ
#47772 ǯԤ
ƱˡǸɤǤ
somewhere in the world 1129ڡ 1:45:31 47774
ˤ⡼
򤳤ȻפȤ̲˲򤱤ä褦Ǥ
ѷ椫 BQ*QP=BH*HC=36=AB^2 AB=6
¡ 1129ڡ 2:20:16 47776
Ȥ
ɸH(0,0),A(0,a),B(-a^2/b,0),C(b,0)Ȥ
ľBP:y=b*(x+a^2/b)/a濴BĹ4αߤθQ
ľBP濴BĹ9αߤθP
HQB梤PCBa,bͤޤAB=a*sqrt(a^2+b^2)/b
Ǥ XMaxima

part(solve([y=b*(x+a^2/b)/a,(x+a^2/b)^2+y^2=16],[x,y]),2)$
part(solve([y=b*(x+a^2/b)/a,(x+a^2/b)^2+y^2=81],[x,y]),2)$
part(-num(factor(((rhs(part(%o2,1))+a^2/b)^2+rhs(part(%o2,2))^2)*((rhs(part(%o1,1))+a^2/b)^2+rhs(part(%o1,2))^2)-(a^2/b)^2*(b+a^2/b)^2)),1)$
part(num(factor(((rhs(part(%o2,1))+a^2/b)^2+rhs(part(%o2,2))^2)*(rhs(part(%o1,1))^2+rhs(part(%o1,2))^2)-(a^2/b)^2*((rhs(part(%o2,1))-b)^2+rhs(part(%o2,2))^2))),2)$
part(-factor(expand(part(%,1)^2-(%-part(%,1))^2)),2)$
part(solve([%o3,%o5],[a,b]),4)$
rootscontract(ev(a*sqrt(a^2+b^2)/b,part(%,1),part(%,2)));6()
˭ԡ 1129ڡ 2:45:56 MAIL:fttnm528@ybb.ne.jp 47777
ֿء׾ι
٤Ȥޤ
1129ڡ 2:49:01 47778
ȤޤԤ
ȯ
1129ڡ 3:59:00 47779
ˤ
Ķļˡ 1129ڡ 6:38:55 47780
Ѥ
ΣϢȯDz򤱤ޤפäפƥۥäȤޤ
1129ڡ 8:29:32 47781
ޤ
Ψ60ʾ ȤƤϰפ
Ψ50ʾ60̤ ȤŬ٤񤷤ʤǡͤȤǤ롣
Ψ50̤ ȤƤʤǡͤǤʤġ

somewhere in the world 1129ڡ 23:35:54 47782
ޥ
#47770
ߤޤȤοޤϺäƤΤΡʤHTMLեκʹߤ򤹤ä˺Ƥơ0:02˵ŤޤޤñʥեäftpƹθʸϤɵǤm(__)m
MBP 1129ڡ 17:54:11 HomePage:47783
٥륯åĥ
Ψ8ĶƤǤ͡ĿŪˤϤʤȤޤ䤬ʿ̿޷餫ʡ
1129ڡ 23:08:01 47784
ϥ饮㡼ƥ
򤱤Dz򤱤ʤä
1130ʶ 6:36:22 HomePage:湩ؤ˥47785
Ф
ϰפHBQ梤PBC꣹BCBHBHBC36
ABH梤CBABHABABBCAB^2=BHBCAB^2=36
äAB6
βˡ¿Ǥ
121ڡ 5:10:39 47786
ѥ
ѷ2ȤǤ͡

ȤǺǯ˺ǯoffϡ
122 2:02:55 MAIL:dr-yasu@nifty.com 47787
ޤ
#47784 ٥륯åĥ

٥륯åĥޤۤɤǤⵤŤˤȤΤäơ
¿ޤ^^;
somewhere in the world 123ʷ 11:49:25 47788