ޥ
ߤޤ˵ޤǺäޤɤʤǤߥʤɤΤǤ...
iMac 831ڡ 0:14:49 HomePage:46584

ȤƤ򤫤äǤ
֤ޤٶˤʤޤ
831ڡ 0:20:01 46585
!!!
­̵ʤǤ
͡ 831ڡ 0:24:44 46586
ŷ¢
षʤǤ줿ʬޤʾС
ξʤ̵ˤޤ󤫡
831ڡ 0:44:49 46587
ޥ
BH=BC˺Ƥޤ...orz
iMac 831ڡ 0:46:55 HomePage:46588
ŷ¢
ʤȾͽۤޤʾС
831ڡ 0:49:38 46589
Ȥ
ɸA(a+b,156/b),B(a,0),C(0,0),D(b,156/b),H(a,156/b),P(a,156/b-b)Ȥ
HBCD=BC(=a)*BH(=156/b)/2-ABH(=78)=a*156/b-78=390,156/b=a
xȤƻʿa^2+(156/b-b)^2=x^23ϢΩȤ XMaxima Dz򤯤

part(solve([a^2+(156/b-b)^2=x^2,a*156/b-78=390,156/b=a],[a,b,x]),3);
a=6*sqrt(13),b=2*sqrt(13),x=26()
˭ԡ 831ڡ 1:00:00 MAIL:fttnm528@ybb.ne.jp 46590
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ϤߥǤ͡­ФޤǤ
ƣоˣФȤʬޤľäƤޤ

78ߡ2/3ˡ52
39052338
3382676
6762626
ä26Ȥʤޤ
831ڡ 1:00:41 46591
٥륯åĥ

ѷУ£äȣģȣ¤ϹƱʤΤǣУäȣģ¤ƱĹǿľ˸ޤͳѷУ£ãĤѤơгг2338ǽФޤ
831ڡ 1:04:41 46592
ˤ
ʸBC=BHʤơĹޤʤȻפäǺǤ
Ĥδ֤ˤ郎ɲäƤ
Ķļˡ 831ڡ 1:11:43 46593
ǯ
ꡢAH:AD=1:3ΤˡBP:BH=BP:BC=2:3¨BHDCBPǡBCCPľ򤹤롣
BCCPθQȤȡBQPCQBCBP
BQ=3ȤȡPC=13/2CBPѤ(1/2)*3*(13/2)=39/4
ºݤˤ78*2=156 cm2ʤΤǡ16ܤǤꡢĹ4ܡ
Τˡ13/2*4=26cmȵޤ
Ĺη׻ϥ٥륯åĥˡޡȤǤ͡˺Ƥޤ
ǶƬƯ֤롣Ƚ䤹ȤۤäȤޤ
ǽ顢ɤƤ򤱤ü첽ǹ⤵ŬƷ׻Ƥߤȡ⤵ˤäCPĹ㤦
ɤ郎­ƤʤȻפĤĤ⡢Ҥä顢PACä顥ȿƤ顢ФޤBH=BCϻפĤޤǤ

831ڡ 2:04:46 46594
å֡Ʊ
ϲȤʤä롼ȤȤäƤޤäΤDz
831ڡ 2:37:54 46595
ȤޤԤ
1323ľѻѷȤʤ뤳ȤѤޤ
831ڡ 3:07:53 46596
ֿء׾ι
ʿȤޤŻǤ
831ڡ 3:09:43 46597
ֿء׾ι
ʸǡФϡpˡפΤȤȡͤӤΡ֣£ȡãȡפΤȤޤäƤޤ͡
831ڡ 3:26:25 46598
ϥ饮ݥƥ
ɤˤǤޤMATHEMATICAǤ
ǶϷ𲽤ʪ˺Ҥɤʤޤ
831ڡ 9:48:22 HomePage:湩ؤ˥46599
ߤ
椫ȡȣġᣱȣСУ¤⣱
դУäˡѷУ£ä򣹣٤IJžʤ飴롣
ǤѤϣߡʣˡߡʣˡߣᣵ
դУäѤϣߣܣ᣶
УáߣУá᣶Уáᣲ
831ڡ 10:33:10 46600
DSK24
ʿȤäƤ⤦
831ڡ 15:24:49 46601
Mr.ǥ
ϣ̤ǤȡBH=CHü첽26ȤŪˤ⤽뤫
ȹͤƤޤ̵Ȥ狼äȤ ƤߤСʸäƤޤ

ˡϡߤ󤵤Ρ#46600 ƱǤ
831ڡ 16:44:27 46602
ˤ⡼
Ǥ

޷ΥѡĤѰư
PCĹľջѷФʡ
ˤΩƤƲ򤭤ޤ

AHPHaPBHDb Ȥ롣

ABHˤĤơ a(a+b)/2=78
ʿԻշADCBˤĤ (a+b)(a+b)=468
äơa:b=1:2
ǡޤǼФˤʤäƤʳĹδط狼롣

ˡʿԻշADCBΥѡĤѰư롣
ABH淿HBCDαˡABDC˰פ褦ʿ԰ư
HH'Ȥ롣
ޤPBCBCH'Cפ褦C濴˲ž
PP'Ȥ롣

ͳѷHPCP'Ѥϡ޷Ѱưˤꡢ78+390468
ͳѷHPCP'ϡPCդľջѷPCP' ܡHPP'
HPP'ϡAHBι⤵5/3ܤΤ顢78*5/3=130

PCP'468-130=338äơPC=26
ʾ

꤯ɤơ
̸ǭ 831ڡ 20:33:04 46603
kazsyun
ѷABHưƹͤޤ
ǽνΤ褦ˡBH=BC ̵Ƥ⤤Ǥ͡
91ʶ 10:26:02 46604
kazsyun
BH=BCɬפǤ͡
εű󤷤ޤ
ǤȻפǤޤ^^;
92ڡ 5:49:58 46605
Ȥ
̤ꤹꤵ쥹Ҥɤ٤ʤޤߤޤ

#40846
>> ѷcos(102*%pi/180)ˤȤǤ
> Ϥ᤿褤⡣ʤȤ⤫Ķ۴ؿʤΤǡ¤߳줿ʤȤͤ(^_^;) áǤ⥴Ȥ⤵ʤǤ뤫⡩ФäƲ

#40845
> -(sqrt(-(2*tan(3*%pi/10)^2+2)*cos(14*%pi/15)+tan(3*%pi/10)^2+2)-tan(3*%pi/10)^2)
> /(sqrt(2)*(tan(3*%pi/10)^2+1)*sqrt(1-cos(14*%pi/15)))
> ѷcos(102*%pi/180)ˤȤǤ
> ΤȤϻ֤äƤߤޤ

2017ǯ942013ǯ8234ǯʾ夿äƤޤ(4ǯͤƤ櫓Ǥʤ,򸫤ƻפФޤ)
cos(102*%pi/180)=-sin(%pi/15),cos(14*%pi/15)=-cos(%pi/15)Ȥ
XMaxima ѷcos(102*%pi/180)ƱǤ뤳ȤΤޤ
ȥޥɤάѷƤǤޤ(ά)ʲXMaxima

num(factor(-(sqrt((2*tan(3*%pi/10)^2+2)*cos(%pi/15)+tan(3*%pi/10)^2+2)-tan(3*%pi/10)^2) /(sqrt(2)*(tan(3*%pi/10)^2+1)*sqrt(1+cos(%pi/15)))+sin(%pi/15)))$
trigreduce(num(factor(ev(%,tan(3*%pi/10)=sqrt(25+10*sqrt(5))/5))))$
part(-factor(part(%,3)^2-(%-part(%,3))^2),2)$
-factor(trigreduce(%))$
factor(ev(%,cos(%pi/5)=(sqrt(5)+1)/4))$
trigsimp(expand((part(%,3)+part(%,4))^2-(%-part(%,3)-part(%,4))^2))$
expand(ev(%,cos(2*%pi/15)=2*cos(%pi/15)^2-1))$
factor(ev(%,cos(%pi/15)=(sqrt(6*(5+sqrt(5)))+sqrt(5)-1)/8));0
˭ԡ 94ʷ 21:30:55 MAIL:fttnm528@ybb.ne.jp 46606

޷κؤơĺCȤƤ겡Ƿ׻ޤ
դȹ⤵ȤѤ᤿ȤǼ꤬ߤޤ롣
ɲþǰŪޤäΤǤʤȤʤޤĻǤޤˡ̤Ǥ
96ʿ 7:44:20 46607
粬 ҹ
פ֤ޤ轵äǤ͡ Ǥפ֤򤯤ɤǤ͡

ǯ˸Ρȥ饤󤬤äȤפФפäƤޤκǤ
97ڡ 18:20:52 46609
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#46608
ţС£ФȤΤȣСУ¤ΤȤǤСȡУȤʤΤ12ˤʤޤ餯ΣȡУȤȤƤΤǤϤʤǤ礦ä餺ߤޤ
98ʶ 0:27:39 46610
Mr.ǥ
٥륯åĥ#46610ͭ񤦤ޤ
AH=PHϹθƤΤǤͳѷABCDʿԻշǤ뤳Ȥޤä˺ƤޤѤ¤Ǥ
ʤС˲򤤤Ȥˤϡơ12ȤƤȤפФޤ
ľĤǡ郎ȤǤȤϡȥۥۡǤ

񤭹ߤ򤽤Τޤޤˤơ¾οͤˤ ĤޤʤߥդäƤ餦Τ϶̤ʤΤǡν񤭹ߤϺޤ
ˤ꤬Ȥޤ
98ʶ 9:02:38 46611
ɩ
ޡˤϡ
99ͤ1ȯɩ¤ƥ101ܤξ硢ΨϤɤʤΤƤ
(99+1)(99+1)100100
(99+1)(99+101)10050
910 6:19:47 46612
ޥ
#46612ɩ¤

νɽβɽƤΨǤ顢50%ɽ褦ˤʤäƤޤޤܰ¤Ȥ⤽¸ŪˤĤƤߤεǽǤΤ...m(__)m
MacBook Pro 912ʲС 0:44:15 HomePage:46613
ɩ
ޥ뤵ޡ򤢤꤬Ȥޤ黲ä2003ǯ餺äȵˤʤäƤǤ
Ȥʤ顢ɩ¤ΤҤĤƥΤǡΨäƤ⤢ꤽǤ

Ĥ
ޤǤ֥ƥפǤäƤ⾡ˡ֥ǥʱˡפˤ㤤ޤ
ƴפǤȡ3ڡܤΥץե֥ˤäо줷ޤʤǤ͡
फǥƥ礷Ƥʣ̤ƥȤդȤäƤΤǤ
ð 912ʲС 22:02:32 46614