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http://www.dotup.org/uploda/www.dotup.org1327104.png
ʤ󤸤
͡ 83ڡ 0:25:31 46535
baLLjugglermoka
ޤ󥯤ˡʬޤ
83ڡ 0:33:53 46536
̾
轵ȼ¼ƱǤ͡轵򤤤ͤʤ֤Dz򤱤ޤ͡
83ڡ 0:35:45 46537
٥륯åĥ
#46535ƱǤ
ʤʤפĤޤǤջѷĺäƤߤѷǤƲ򤱤ޤ
83ڡ 1:06:33 46538
ϥ饮ݥƥ
Ʋγ٤׻ǸϳդĹ
줿;Dz򤭤ޤ
83ڡ 3:23:18 HomePage:湩ؤ˥46539
ȤޤԤ
ɤϥ󥰥졼˵
83ڡ 10:01:33 46540
ޥ
#46536

̤URLС˥󥯤ޤ
MacBookPro 83ڡ 14:30:22 MAIL:masaru-y@sansu.org HomePage:46541
Ȥ
ɸA(2*cos(7*%pi/18),0),B(cos(7*%pi/18),sin(7*%pi/18)),C(0,0),D(a,tan(7*%pi/18)*(a-2*cos(7*%pi/18))),BA=BC=1Ȥ
ľBDC̤ꤽľ򤹤ľθ᤽BޤǤεΥʿǵcos(30)^2=3/4aõ
tan(DCA)=1/sqrt(3)=tan(30)ȤΩĤɤXMaxima

part(trigsimp(solve([y=(tan(7*%pi/18)*(a-2*cos(7*%pi/18))-sin(7*%pi/18))*(x-cos(7*%pi/18))/(a-cos(7*%pi/18))+sin(7*%pi/18),y=(cos(7*%pi/18)-a)*x/(tan(7*%pi/18)*(a-2*cos(7*%pi/18))-sin(7*%pi/18))],[x,y])),1)$
trigsimp(factor(expand((cos(7*%pi/18)-rhs(part(%o1,1)))^2+(sin(7*%pi/18)-rhs(part(%o1,2)))^2)))$
rhs(part(solve(expand(4*num(%o2)-3*denom(%o2)),a),1))$
trigsimp(expand(3*tan(7*%pi/18)^2*(2*cos(7*%pi/18)-%)^2-%^2))$
part(-factor(part(%,2)^2-(%-part(%,2))^2),2)$
factor(trigreduce(%));0 ΩACD=30BCD=BCA(=70)+ACD(=30)=100롦()
˭ԡ 83ڡ 15:08:30 MAIL:fttnm528@ybb.ne.jp 46542
3N.K.
פ֤о
83ڡ 17:28:33 46543
ǯ
ѷջѷѤ뤳ȤޤǤͽۤǤΤǤ
ǸޤǹԤ夫ü᤯̤ޤ
2ޤơ99٤100٤ȤʤäΤǡ99Ϥʤᡢ100
83ڡ 17:30:03 46544
Ф
ѴؿȤäƤߤñȤʤФƹ߻ޤɤ2ջѷ˰㤤ʤƧ餽ä
85ڡ 9:51:09 46545
鯤ο
BCDȤȤ
Ѹ顢
sin/sin40sin(+30)/sin30
ФơˡȤäȡ
tanȡ1/(1/sin40-3)
ȡ100
Ϸ׻ȤʤȤǤʤ

ʬäȤǡ¾βˡõ롣

BA=BCꡢBCA(180-40)/270
ACD30򼨤Ȥɸˤʤ롣
ˤϡADC=30顢
ACBDθFȤȤ
ADF梤ACFФ褯
ΤˤϡAD^2AC*AFФ褤

AB=sin30ν̼ܤǹͤȡꡢADsin10
BC=AB=sin10
AC2BCsin20sin20

BFC梤DFAsin30롧sin10顢
AFsin20*(sin10/(sin10+sin30))

ǡ
RAC*AF/AD^2׻롣

R=sin20*sin20* sin10/{(sin30+sin10*sin10*sin10}

X=10Ȥȡ2ܳѤθʤɤȤȡ
R{8sinX-8(sinX)^3}/(1+2sinX)

ǡR=ʤС
8(sinX)^3-6sinX-10Ȥʤ櫓ϡ
3ܳѤθ
sin3x3sinX-4(sinX)^3X10ȡ嵭ˤʤΤΩ롣
//

85ڡ 14:16:07 46546
yuzonada
;ǤѷѤơȤƤߤޤ
87ʷ 15:11:52 46547
yuzonada
ϡ٤Ǥ͡
87ʷ 15:17:23 46548
lemontree
ƻäޤ
46535ƱǤ
󥰥졼ΰʤΤǤ礦
λԥåΥ󥰥졼˴ưƤ顢ʤȤʤ̣äƤޤϤDz򤱤ΤϤϤƤäΤǵǰƤޤ
88ʲС 1:00:39 46549
77
http://vps6-d.kuku.lu/files/20170808-0006_b279d22f70f19eee2a42fe310fbdaad2.jpeg
ABդȤѷꡢBCPդˤʤ뤳Ȥ򤭤ޤDCPľˤʤ뤳ȤƤǤ礦
88ʲС 1:17:07 46550
77
http://vps6-d.kuku.lu/files/20170808-0006_b279d22f70f19eee2a42fe310fbdaad2.jpeg
ABդȤѷꡢBCPդˤʤ뤳Ȥ򤭤ޤDCPľˤʤ뤳ȤƤǤ礦
88ʲС 1:17:53 46551
Ϸ
ʣˤȯۤʤ̵ηäʤäƹͤޤ

Фȣ£äθѤȤޤ
УѣäϣգѷǤ
ѣäȣĤʿʤΤǡУѣâ梤УĤͤޤ
ܣ£ģáᣱݢܣģ£áʣˡݢܣ£ãġʣ
ᣵȤʤ
УĤϣգѷȤʤޤ
衡УãĤľȤʤޤ
89ʿ 7:56:51 MAIL:takaaki-k@aqr.bbiq.jp 46552
ǯ
#46552
ܣ£ģáᣱݢܣģ£áʣˡݢܣ£ãġʣ
΢ܣ£ãġᣱȽäƤʤΤǡȤäƤϤޤΤǤϡ
УãĤľȤȤϴñǤ̵Ǥ
89ʿ 23:48:59 46553