٥륯åĥ
ѷAEDEAD2514ʤΤ25251414ˤʤΤǡBDDC2525ߡ3/5ˡ1414ߡ5/4ˡ7549ä75/49ˤʤޤ
ȤǡʸΤǻβνˤǤɤޤ礦
416ڡ 0:11:00 48946
٥륯åĥ
03480444Τɤ餫餯0444Τ褦ʵޤξڤޤ
ʸ̾̾ĤˤäǤɤ͡
416ڡ 0:13:33 48947
baLLjugglermoka
ŻDz򤭤ޤˡϥեġǤ
416ڡ 0:19:15 48948
٥륯åĥ
ǰΤȤͻҤ񤤤Ƥޤ
ĤΤ褦βե˲졢̾ƤʸʸȤäƤ֥٥륯åĥפޤ
夤бĺȽޤ
416ڡ 0:20:20 48949
tomh
ľȤȡ75/49Ǥޤ
դ(ͥ饦)Ȥ8/5Ȥʤޤ
¿ʤΤǤ?
ԡ 416ڡ 0:34:32 MAIL:tomh@yahoo.co.jp 48950
(Keigei)
ͥ饦ȤСBDDC85 ˤʤޤ
EDDF103 ǤꡢADEF ˤʤޤ
416ڡ 0:46:34 48951
̻
ޤ꤬褦˻פޤ
500/321ˤʤäƤޤ
416ڡ 1:03:23 48952
ֿء׾ι
ºߤʤ⡣
416ڡ 2:07:55 48953
ǯ
CADˤƻѴؿǵ᤿Ȥ줤ˤʤʤä
EFC,B򲼤ơǡEFĹ椫ơ78/49
416ڡ 2:46:56 48954
ޤ
ʺǹ̡ʾС

ͥ饦ǰȯʤΤˡǼĤ줺
ԤΥꥹȥåפ٤Τǡ
ߥʤĤ
ʤʤ䡡ޥ뤵

somewhere in the world 416ڡ 3:19:21 48955
SECOND
򡢣£áţƤθͥ褵ȡܣģƤϡ1.5894red. ľѤϤ礭
416ڡ 5:32:34 48956
̴
#48950&#48951
ͤƱͤ8/5Ǥä줺ǺǤޤ
̤μˡǥȥ饤äޤ
ٻΤ桡 416ڡ 7:58:34 48957
ǯ
#4895478/4975/49
416ڡ 8:59:48 48958
ϺĹ
ʤǡȤˤƤ͡äƤޤ
75:49 äƤޤ
416ڡ 11:25:26 48959
Ȥ
ο4Ĥʸˤ
ޤ˻褦ʿ޷ǡ
ʸοͤedit
AB=39,AC=48,BE=13,CF=913/12()
˭ԡ 416ڡ 12:42:16 MAIL:fttnm528@ybb.ne.jp 48960
Ȥ
#48960

ʥ쥹Ǥߤޤ
>ο4Ĥʸˤ
ˡ񤤤Ƥʤäǡ
ȤǤǤΤǤĹȤޤ!!

AB=a,AC=b,BE=c,CF=d(b>d)Ȥ
ľEF:y=-(b-d)*x/(c+a)+b-d
ľBC:y=-b*x/a+b θ
ľADľEFľ򤹤ϡXMaxima

part(solve([y=-b*x/a+b,y=-(b-d)*x/(c+a)+b-d],[x,y]),1)$rhs(part(%o1,1))$rhs(part(%o1,2))$
-num(factor(%o3/%o2-(c+a)/(b-d)));
factor((a-%o2)/%o2);
b*c*d^2-a*c^2*d-2*b^2*c*d-2*a^2*c*d-a^3*d+b^3*c=0Ф褯
-c*(d-b)/((c+a)*d)a,b,c,d(AB30餤)ˤ

Basic

PRINT TIME$
FOR a=30 TO 50
FOR b=30 TO 50
FOR c=1 TO 50
FOR d=1 TO b-1
IF a<b AND b-d<c+a AND b<a+c AND a>c AND 2*c*d+a*d-b*c<0 AND b*c*d^2-a*c^2*d-2*b^2*c*d-2*a^2*c*d-a^3*d+b^3*c=0 THEN PRINT a;b;c;d;-c*(d-b)/((c+a)*d)
NEXT d
NEXT c
NEXT b
NEXT a
PRINT TIME$
END

13:01:22
39 48 13 9 13/12
40 45 32 9 16/9
13:01:25
˭ԡ 416ڡ 13:06:26 MAIL:fttnm528@ybb.ne.jp 48961
٥륯åĥ
٥ڤ83+2ˡ85ʤΤ8/5ˤʤޤ͡⻻ˡʤΤǡ8/5ǤΤǤϡ
416ڡ 13:45:10 48962
ޥ
ߤޤ󡢾¿ä褦ǤʤäϳǧǤƤޤ󤬡

Ȥꤢ8/5⡢500/321Ȱ褦ˤޤڤ֤ΤϿˤʤꤽʴǤm(__)m
MBP 416ڡ 14:44:30 HomePage:48963
٥륯åĥ
Ԥ쵤ޤϤͥ饦٥ڤοͤ빽褦Ǥ͡
ʸˤĤƤϡڤΤäľƤߤޤ
416ڡ 16:02:57 48964
٥륯åĥ
ͼ٤Ʊ褦˺ƤߤȤɽ̾ΤȤȤǰϤޤơ50ʸǡȥåФǤޤǤ
եθܤ̾󡢽ɽ̾Ȥ&#65533;εޤäƤΤѤޤ󤬡뤿ӤѲƤΤǤ礦
416ڡ 16:07:35 48965
٥륯åĥ
&#65533ϥˡ֡פǤ
416ڡ 16:12:00 48966
Ȼ
DAB˿򲼤1483/980ˤʤޤ
416ڡ 18:08:13 48967
Ȥ
#48960

ʥ쥹Ǥߤޤ
>ο4Ĥʸˤ
ˡ񤤤Ƥʤäǡ
ȤǤǤΤǤĹȤޤ!!

AB=a,AC=b,BE=c,CF=d(b>d)Ȥ
ľEF:y=-(b-d)*x/(c+a)+b-d
ľBC:y=-b*x/a+b θ
ľADľEFľ򤹤ϡXMaxima

part(solve([y=-b*x/a+b,y=-(b-d)*x/(c+a)+b-d],[x,y]),1)$rhs(part(%o1,1))$rhs(part(%o1,2))$
-num(factor(%o3/%o2-(c+a)/(b-d)));
factor((a-%o2)/%o2);
b*c*d^2-a*c^2*d-2*b^2*c*d-2*a^2*c*d-a^3*d+b^3*c=0Ф褯
-c*(d-b)/((c+a)*d)a,b,c,d(AB30餤)ˤ

Basic

PRINT TIME$
FOR a=30 TO 50
FOR b=30 TO 50
FOR c=1 TO 50
FOR d=1 TO b-1
IF a<b AND b-d<c+a AND b<a+c AND a>c AND 2*c*d+a*d-b*c<0 AND b*c*d^2-a*c^2*d-2*b^2*c*d-2*a^2*c*d-a^3*d+b^3*c=0 THEN PRINT a;b;c;d;-c*(d-b)/((c+a)*d)
NEXT d
NEXT c
NEXT b
NEXT a
PRINT TIME$
END

13:01:22
39 48 13 9 13/12
40 45 32 9 16/9
13:01:25
˭ԡ 416ڡ 21:08:11 MAIL:fttnm528@ybb.ne.jp 48968
Ȥ
#4968

ߤޤɤƱƤ
ޤǤʤߤʤΤǤߤޤ
˭ԡ 416ڡ 21:10:50 MAIL:fttnm528@ybb.ne.jp 48969
ޤ
̤äƤ(^^;
somewhere in the world 417ʶ 0:39:25 48970
٥륯åĥ
ʤܤФƤޤäΤǾ¿ˤĤƽ񤤤Ƥޤ
Ѥ75/49ξ硢BDCľǤΤס
ͥ饦ʥ٥ڤˤ8/5ξ硢ľ郎ס
417ʶ 3:43:01 48971
٥륯åĥ
ĤǤʸڤκ
75/49ǡ̾Ƚɽ̾򥯥ꥢ2Ƥ̾ܤ餺
˲äƥ᡼륢ɥ쥹ˤƤ̾ܤޤ
417ʶ 3:53:02 48972
٥륯åĥ
ϢФˤʤäƤߤޤ
ǡCookieϿΥå򳰤ơʽɽ˽Фʤ褦ƤߤȤƤʸ٤ƾäƶˤʤޤåѤʤʤǤ
417ʶ 4:02:56 48973
٥륯åĥ
#48971
ְäƤޤ

BDCľ

ξ郎ʤȤ⤽BDDCˤʤޤ
417ʶ 6:21:09 48974
ޤ
#48973 ٥륯åĥ
ʤʸΤǤ礦͡ġ
ϤĤookieϿΥå줺ƤΤǡ
դˡå򤤤ƤߤޤʸޤǤ

Ķϻäʿޤǡwin10ChromeǤ
somewhere in the world 421ʲС 3:30:23 48975
tomh
ޤȤƤߤޤ.

AB = 30cm, AC = 35cm, BAC = 90٤ľѻѷABCˤ,
ABB¦20cmĹEȤ, ޤ, ACAF = 28cmʤFȤ.

ľEFBCȤθQȤ.
ޤ, ľEFA򲼤, ­PȤ.
, ʬAPBCȤθDȤ.
(黰ĤDPQפƤȤƤޤäΤ, )

ͥ饦(٥ڤ), BQ:CQ = 5:3Ȥʤ(1).

ޤ, ΤȤ, PϻѷABC"¦"ˤ,
PAE梤PFA( 25:14)Ȥ, 椫,
DAE:DAF = (AD/AP)xPAE:(AD/AP)xPFA = PAE:PFA = 25x25:14x14Ǥ.
, դ,
DAB:DAC = (30/50)xDAE:(35/28)xDAF = (3/5)x25x25:(5/4)x14x14 = 75:49Ȥʤ(2 -- ).
ԡ 422ʿ 11:41:41 MAIL:tomh@yahoo.co.jp 48976