nora
̤줿ʡ
cossinȤäΤǡؤäݤǤ
ΡѴؿȤäƤޤ͡
62ڡ 0:11:38 37875
㡼ߡ
Ϥ;ǡġ
ɤǤ⤤ǤʸѤñ̤ cm^3 ˤʤäƤޤ͡
62ڡ 0:15:23 37876
ͤࡦ
ԥ饹ǥ겡Ʋ򤤤Ƥޤޤ(-_-)
Ūʬʤġäġ
62ڡ 0:17:03 37877
ͤࡦ
ɵʸǡѤñ̤֣פˤʤäƤޤ
62ڡ 0:18:33 37878
CRYING DOLPHIN
CBCDCECGBCEܳDCG180٤ꡢBCEᢤDCG顢
ͳѷDBEGᢤDBCܢGCEܢBCEܢDCGᢤDBCܢGCE2ߢBCE
ͳѷDBEGѤϡ()г90٤Ǹ뤫顢
99281/2cm^2ä
81/26624422ߢBCEꡢBCE29/4cm^2

CBCDCECGBCDECG90٤顢BCGC
濴Ȥ90ٲžСBCGϢDCEȥԥå
ޤDEBG9cmȽ

ɤǤ᤿ 62ڡ 0:26:34 HomePage:ƻ37879
hide
Ʊǥ겡
ȡࡡ 62ڡ 0:25:17 37880
ͤ
;cosФsinˤ褦ȤޤˡθФ
֤ޤorz
裲롼ס 62ڡ 0:26:15 HomePage:37881
Ȥ
ɸ֤ޤ

褺GB,C濴Ȥ줾Ⱦ9,4αߤθȤƵ
e1:x^2+y^2=81$
e2:(x-6)^2+y^2=16$
solve([e1,e2],[x,y]);x=101/12,y=sqrt(1463)/12
G(101/12,sqrt(1463)/12)
C(6,0)̤CG
e3:0=k*6+l$
e4:sqrt(1463)/12=k*101/12+l$
solve([e3,e4],[k,l]);y=sqrt(1463)*x/29-6*sqrt(1463)/29
ľľ򤷤C̤ľ
ľCE:y=-29*(x-6)/sqrt(1463)E
E(a,-29*(a-6)/sqrt(1463))C(6,0)εΥ4
(a-6)^2+(-29*(a-6)/sqrt(1463))^2=16򤯤
solve((a-6)^2+(-29*(a-6)/sqrt(1463))^2=16,a);a=(sqrt(1463)+72)/12
Eyɸ:29*(a-6)/sqrt(1463)6Ȥʤ뢤BCEѤ
a:(sqrt(1463)+72)/12$
expand(29*3*(a-6)/sqrt(1463));29/4()
˭ԡ 62ڡ 0:34:33 MAIL:fttnm528@ybb.ne.jp 37882
ݤä
CRYING DOLPHINƱǤ
62ڡ 7:01:23 37883
ϥ饮㡼ƥ
Ϥ褦ޤѴؿǤ
62ڡ 7:34:15 HomePage:湩ؤ˥37884
̴
CRYING DOLPHIN
CRYING DOLPHIN
CRYING DOLPHIN9ȤͤλȤʬޤ90žޤǤʬäΤǤгľ򤹤뤬󡼡



62ڡ 8:02:32 37885
̴
CRYING DOLPHIN9ȤͤλȤʬޤ90žޤǤʬäΤǤгľ򤹤뤬󡼡



62ڡ 8:11:33 37886
ͣ.ǥ
ϿؤDz򤤤ΤǤޡäȻDz򤱤ޤïν񤭹ߤȥ֤äƤ뤫
⤷ޤ󤬡Ȥꤢ񤭹Ǥߤޤ

£ǤȣģŤθȤȤȡ£ǣâᢤģţá£ǢݣģšʤǤ֤Ǥ͡
ǤģáŤ£äαĹ˲򤽤줾СѤȤ
ãǣТᢤţãѡȤʤꡢǣСţѢ͡ǣģáᢤ£ã
£ģţǡʡ9*9/2ˤˤ
£ã+ǣģá9*9/2ݢ£ãġݢǣã
裲*£ãš9*9/26*6/24*4/229/2
äơ£ãš29/4
ʤʤʤȡ򤤤ƤߤƤ鵤դޤ
62ڡ 9:02:56 37887
uchinyan
Ϥˤϡơϡ
ϳڤǤʴǡ

ޤBC = CD = 6 cmCG = CE = 4 cmBCG = BCD + DCG = 90+ DCG = GCE + DCG = DCE ꡤ
BCG DCE BG = DE = 9 cm ǡDCE BCG 90žΤʤΤ BGDE Ǥ
ˡDCG C β˻ײ˲ž CG CE ˽Ť͡D ΰư D' Ȥȡ
CG = CE G E ˽Ťʤꡤ
BCD' = BCE + ECD' = BCE + GCD = 360- BCD - ECG = 360- 90- 90= 180ʤΤǡBCD' ϰľˤꡤ
BCE D'CE 碌Τ BCD' ˤʤޤ
⡤BC = DC = D'C ʤΤǡBCE = D'CE ȤʤꡤäơBCE = DCG Ȥʤޤ
ʾΤȤ顤
BEGD = BCE + ECG + DCG + BCD
BEGD = (BG * DE)/2 = (9 * 9)/2 = 81/2 cm^2BCE = DCG
ECG = (CE * CG)/2 = (4 * 4)/2 = 8 cm^2BCD = (BC * CD)/2 = (6 * 6)/2 = 18 cm^2
ʤΤǡ
BCE = (81/2 - 8 - 18)/2 = (81 - 52)/4 = 29/4 cm^2
ˤʤޤ
ͥνȡ 62ڡ 11:46:57 MAIL:uchi@sco.bekkoame.ne.jp 37888
uchinyan
ǼĤɤߤޤ
ŵŪʻȻפäΤǤճ˿زˡ¿褦Ǥ

#37879#37883#37887#37888
BCE = DCGBG = DE = 9 cmBGDEBEGD = BCE + ECG + DCG + BCD ʤɤȤˡ
ε˼㴳ΥХꥨ󤬤ޤ

#37875#37876#37877#37880#37881#37882#37884
ؤˤˡ
ͥνȡ 62ڡ 12:08:01 MAIL:uchi@sco.bekkoame.ne.jp 37889
abcba@jugglermoka
ϻʿDz򤭤ޤ(ϴñǤ͡)

θͤľ鲿ȤDz򤱤ޤˡ#37879ƱǤ
(դдñǤ줬ʤʤդʤΤǤ͡ºݼʬ⤳βˡ˵դΤˤʤ֤ݤޤ)
62ڡ 12:09:54 37890
cyclone
ѴؿDz򤭤ޤ
62ڡ 12:44:50 HomePage:饤եå峫37891
⡼ޥ
#37879
ä!!
BG=DE ޤǵŤƤΤ...򤤤ȤäϤʤΤˤΤ...^^;
ľˤʤäƤ뤳ȤˤŤʤ㤤ޤǤ....
ʤΤ...錄 sin,cos...Orz...
Aha
62ڡ 13:43:12 37892
ߡ
Ȥ󤤡ġ
62ڡ 21:28:36 37893
ޥ
ꡢۤܥꥸʥǡʤǤ⡢ͥϡοؤǶʽˤܤäƤ롩ƱξǤ˺ޤβˡˤĤƤϡ빽äƤޤοͤͿʤʤɤ...­Ƥޤ

ˤƤ⡢̿ؤ᤹äơ;Ǹޤʤ᤯....(^^;
iMac 62ڡ 21:31:43 HomePage:Men @ Work37894
nora
#37894
ðۤΣʬ̤^_^;
׻ߥǡ8ʬ28á
63ʶ 20:22:58 37895
ޤ륱
ǶᡢǡPCΩ夲֤ޤʤơ
ޤǤ

ϡΤ褦ʿ̤ߤͤƤߤޤ
ȡȡλѷӤäꡣ
ǡҤȤĤη֤Υѥϣդ
ʤΤǡѷĤѤϡ
ʣߣݣߣݣߣˡࣴ

ʬɤäƤߤںٹߤǤ줤⡣
äë 64ڡ 11:02:37 HomePage:ޤ륱37896
aibo
Ĥľѻѷǹ⤵ޤŪˡϸĤ餺ޤٶޤ1֤餤äv
65 0:35:42 37897

©ҤΥ˥ԥåä˿ȯơ
󣱣ǯ֤λäǤ

;ʤɤϵΤʤʤΤ
ޤ륱󤵤ƱͤߤͤǤ
գ줿
֤ǼȾʿԻշ
ѡĤƤϤޤäƤȤ˵ŤȤ
ޤˡ֥ϡפʴǤ

Ǥ͡
65 3:32:44 37899
祦ե
ʤʤDz򤱤˷ɻǽФޤ
BEGDȤǤΤǤʿȤäϤɤФΤǤƤ
66ʷ 23:13:07 37900
ͣ.ǥ
#37900 > ʿȤäϤɤФΤǤ
Ԥ֤󡢼Τ褦ˤ줿ΤǤ礦
ǡŤľ£ä˲򡢤줾ǣȡţȡǤȤãȡȤ
ǣ£Ȥˤơǣȡ292ݡ6ܣˡ2
ǣãȤˤơǣȡ242ݣ2
椨ˡ92ݡ6ܣˡ242ݣ2򤤤ơ29/12
ǣãȢᢤãţȡǡȤʤꡢţȡǡãȡ29/12
衡£ãš(1/2)*6*(29/12)29/4
67ʲС 19:00:44 37901
祦ե
Mr.ǥ󤢤꤬Ȥޤ
ʬǤϤʤʤפĤˤʤäΤǻͤˤʤޤ
67ʲС 21:05:49 37902
fumio
Фϡ٤ʤޤ奪ե߳ڤäǤ
ޥ뤵󤤤Ĥ⤢꤬Ȥޤǯ
ѤΤ飶ѡѤľջѷѤƣdzޤϡ񤷤äǤϤޤ͡
68ʿ 0:15:52 37904