ǯ
ʬιͤǡ
顢xưСѤѲϡ(PRRQ)xѲ
PRRQʤ鸺PRRQʤá
ǽΤP=BȤСǽPRRQǸPR=RQ᤮СPRRQá
ǾͤPRRQλQR=6
1222ڡ 0:25:36 52065
٥륯åĥ
ưȤѲͤ餫6ȡ
1222ڡ 0:28:20 52066
̵
#52053
2014ǯˤۤƱ꤬ꤵƤޤ
https://hyojun.com/vics/2014-nada-math2/
1222ڡ 0:36:00 52067
⡼ޥ
оΤοޤŤͤƤߤ...
餫ˡξ岼Ǥ礭ʤޤΤͤ !!
1222ڡ 0:39:50 52068
CRYING DOLPHIN
Ϥ߽Фˡԡ
夲ƻ衡 1222ڡ 0:42:13 MAIL:Ԥ HomePage:ԤԤ󤹤52069
Ȥ
ʬʬƶͤǡ

ɸC(0,0),CB=y,CD=x
4ʬ:y=sqrt(144-x^2)
P,Q,Rxɸ=aȤ
QR=sqrt(144-a^2)
ʬĤȤѤʬ
aʬƶͤǡMaxima

integrate(12-sqrt(144-x^2),x,0,a)+integrate(sqrt(144-x^2),x,a,12)$
positive$
negative$
factor(%)$
factor(diff(%,a))$
part(num(%),2)$
factor(part(%,1)^2-(%-part(%,1))^2)$
ev(sqrt(144-a^2),part(solve(part(-%,3),a),2));
6()
˭ԡ 1222ڡ 1:40:23 MAIL:fttnm528@ybb.ne.jp 52070
ֿء׾ι
Ǥ
1222ڡ 5:03:59 52071
ޥ
#52069
ϤǯɤܤäƤ֤Ϥ߽ФˡפǤ칩Ǥϡȸ줿餷Ǥ...
Macbook 1222ڡ 20:39:54 HomePage:52072
ɥȥ
ä˺Ƥޤ
ĤʬѤ礭Τ餫PQBCŤʤäƤ
PQ夲Ƥ¦Ѥ(x)¦Ѥθ(y)꾮ȹפϸꡢ礭ȸ롣
ºݤưƤߤѤϥ()Ǿ()Ȥˤʤ뤫顢x=yνִ֤Ǥɤ
PQưѤѤΰФ˽ĤûĹĤޤˤʤ롣
(ǤʬϥȤʤΤDz꤯ɤǤɽƤޤ)
λx=PRy=RQǤ롣Τx=yνִ֤PR=RQǤ122=6
򤯤ʤΤʡġ
1222ڡ 23:34:46 52073
ޤ륱
ʬ򶵤Ȥơ褤꤫ȡ
1223ʶ 10:26:09 MAIL:take4310@mobile.email.ne.jp 52074
٥륯åĥ
ǽ餬6ˤʤ
6ΰ֤УѤưȡĤѤʬϣУҤΰưפĹȾʬ礭ʬϾΤǡɤưƤĤѤä롣ä6ΤȤǾ
1223ʶ 13:44:33 52075
٥륯åĥ
ǽ颪Ǿ
ʸΣУҤϣУѤδְ㤤Ǥ
1223ʶ 13:45:07 52076
٥륯åĥ
Ģ忧
Ƥޤ
ûʸʤΤ˴ְ㤤¿ޤ
1223ʶ 13:48:04 52077
KawadaT
ˡ˵դޤǤʤʲͤʹ⹻ˤʤޤ
RCǡRCQ饸ǦȤȤޤ
Ѥf()Ȥȡ

f()=((12-12cos()+12)*12sin()/2-72)+(72(pi/2-)-72sin()cos())
=144sin()-144sin()cos()-144+36pi

f()Ƴؿ׻ȡ

f'()=144cos()(1-2cos())

äơ0<<pi/2ϰϤǤcos()=1/2ѶˤʤꡢRQ=6ǾǤ
1223ʶ 18:25:58 52078
ޡޤ
ʬȯۤǹͤPRRQΤȤPQɤưƤѤ롣

#52067
轵νꡢǤ꤬Ȥޤ
Х󥹤ʤäʤ 1226ʷ 0:47:13 HomePage:ĥåǿäƤ52079

Ȥꤢɸꤷ(Ⱦ¤1˥Ρޥ饤)׻Ƥߤ
S_1+S_2=sin(cos+1)+-3/4(/2<<)
ʬˡcos=-1/2Ƕ˾ĺǾͤȤʤ뤳Ȥʬ
ȤäŪʲˡפĤޤǤ
ʬˡʪ
ѤκǾ͢3/4-/12ޤ뤳ȤǤ͡
ʤʤ12^2=144򤫤363-12ФäƤȤǤ礦
ŪˡⵤĤȻפäƤޤΤǡ
ڤޤǤ⤦ͤƤߤȻפޤ(^_^)v
1226ʷ 11:05:31 MAIL:s-kurauchi@hokuriku.ed.jp 52080
ֿء׾ι
㤢ʬȤޤ礦
CľCBxľCDyȤޤQR=tȤȡ
ߤx^2+y^2=144ǤѤS(t)Ȥޤ
S(t)=Int_0^t{(144-x^2)-(144-t^2)}dx+Int_t^12{(144-t^2)-(144-x^2)}dx
=Int_0^t{(144-x^2)}dx-Int_t^12{-(144-x^2)}dx+(144-t^2)(12-2t)
S'(t)=2(144-t^2)-2t(12-2t)/{2(144-t^2)}-2(144-t^2)
=-2t(12-2t)/{2(144-t^2)}
=2t(t-6)/(144-t^2)
ǤΤǡ0<t<12Ǥϡt=6Ƕ˾ĺǾˤʤޤ
1226ʷ 16:36:17 52081

˷ٹ路ޤ(ャ)
Ϥ٤ߤǤ͡
ǯڤ仲äǤޤ
ޥ͡äˤʤޤͤˤϴդȤȤˡ餷ǯˬޤ褦ꤪ꿽夲ޤ
1229ڡ 1:31:02 52082
Ф
Ϥ߽ФˡäƤĤǤ͡ؤؤοؤǤ褯ޤ
1230ʶ 23:17:00 52083