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#72 [ΌOΘ΅]
’β’βΧΙΘθά΅½B·’ΔΗ©Α½Ε·(Ξ
:08/11/02 01:40 
:SH903i 
:ikEm8gjQ
#73 [ΌOΘ΅]
±ΑΏͺΕΎΑ½―Ηc
a^2+b^2+c^2=(a+b+c)^2-2(ab+bc+ca)=4-2(ab+bc+ca)
(ab+bc+ca)ͺΕεΖΘκΞζ’¨a^2+b^2+c^2=(ab+bc+ca)¨ _(^O^)^
ΦΑ½
:08/11/02 01:43 :N902iX :
#74 [ΌOΘ΅]
β«x,y,zΙΘΑΔιiΦj½ΟΘ
ͺͺ{[bΖ΅Διέ½’ΎΘ°^)ΙΌ
:08/11/02 01:46 :N902iX :
#75 [δ
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έρΘΗ±u]Ε·©H
:08/11/05 09:45 :SH706i :1JL.4EJI
#76 [±°Ξί]
ΤΙόκΔΊ³’τ
γεγwΪw΅Δά·σσ
QΕ·σξ
:08/11/06 00:43 :W52SA :M3tJtmsc
#77 [ΌOΘ΅]
>>75>>3QΖ
>>76Η€ΌΗ€Ό(LΦM)
γγΝο΅’―ΗAͺρΞΑΔ('Ν')
:08/11/06 14:42 :N902iX :qVwIXhIU
#78 [δ]
>>77·έάΉρ©ΔάΉρΕ΅½
θͺΖ€²΄’ά·
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:08/11/06 15:27 :SH706i :GZMU9omw
#79 [½ΔΫέΈήΞΙαΙαρbanana/0vM]
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:08/11/06 20:10 :F905i :nipAR.42
#80 [ΌOΘ΅]
kςΰοΦΎ΅ͺρΞΑΔp(^^)q
±ΜXΙΝku]’Θ©Α½Μ©(LMj
:08/11/06 23:58 :N902iX :qVwIXhIU
#81 [±°Ξί]
ΌOΘ΅³ρΛ
θͺΖ€²΄’ά·σ~ζ£θά·φΒ
δχΌ³ρΛ
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:08/11/07 00:17 :W52SA :qhxWIwD6
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