標題: [Core] 求解1993ce maths [打印本頁]

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作者: mathsgogogo    時間: 2016-11-2 11:50 PM     標題: 求解1993ce maths

Q14 求點do 唔知道條式點set
https://docs.google.com/file/d/0By_fBXid_HcUd1FhWGlRcTdVNkU/edit

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作者: life1643    時間: 2016-11-3 03:11 PM

條式set做:  Price = k volume
Price = k pi r^2 h
sub Price=30,r=5,h=4
k=0.3/pi

so, price=0.3 r^2 h
ans=28.8

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