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页次：1/11
每页50条记录，
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#跟帖# a2=110^.5, a3=90^.5, a4=60^.5, a5=10,a6=50^.5, a7=110^.5, a8=180
[脑筋急转] - jinjing(65 bytes )
2011-12-31
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#跟帖# 最大N(BI)=1456,最小N(BI)=844 SO, 0.514 > P(14)/P(17) > 0.298
[脑筋急转] - jinjing(21 bytes )
2011-12-30
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#跟帖# 17张大,可以数学证明.
[脑筋急转] - jinjing(347 bytes )
2011-12-30
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#跟帖# "Method of reverse proposition",GOOGLEＷＩＬＬＷＩＬＬＤＯLATER.
[脑筋急转] - jinjing(0 bytes )
2011-12-26
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#跟帖# If you write a paper you can use "Identity Method" and add some
[脑筋急转] - jinjing(0 bytes )
2011-12-25
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#跟帖# Great, but we should plus "至多",两直线只能相交至多一点.
[脑筋急转] - jinjing(0 bytes )
2011-12-25
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#跟帖# Some one used "Same Method",I think is not good,"identity method
[脑筋急转] - jinjing(159 bytes )
2011-12-25
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#跟帖# Cz rotation of the Earth, the temprature is lower than Moon in d
[脑筋急转] - jinjing(169 bytes )
2011-12-24
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#跟帖# 平面几何中的“同一法”，Identity law.?
[脑筋急转] - jinjing(0 bytes )
2011-12-24
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#跟帖# Thanks.You are right.Ｉ think yours is normal ,mine is from pure
[脑筋急转] - jinjing(352 bytes )
2011-12-24
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#跟帖# 打字太慢，不敢答．
[脑筋急转] - jinjing(0 bytes )
2011-12-23
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#跟帖# y=a^(---x),... Sorry, you paint lily.
[脑筋急转] - jinjing(0 bytes )
2011-12-23
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#跟帖# x=5ln(.6673)/ln0.5=2.917..=2...+.917*12...=2years and 11 Months.
[脑筋急转] - jinjing(0 bytes )
2011-12-23
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#跟帖# 墙体温度是45度如是华氏人觉冷,摄氏觉热.
[脑筋急转] - jinjing(0 bytes )
2011-12-21
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#跟帖# 简化题目:电梯随机停在各层,除一层外无人上下楼.否则无法解.
[脑筋急转] - jinjing(242 bytes )
2011-12-21
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#跟帖# 人绝对温度37+273=310,月-150+273=132,310^4/132^4=30,人给月的辐射热是月给人的
[脑筋急转] - jinjing(109 bytes )
2011-12-21
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#跟帖# 递推式可由相似3角形得...,要严格证明他不可能,...也是不可能的.只能怀疑.
[脑筋急转] - jinjing(64 bytes )
2011-12-19
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#跟帖# 兄言极是,他手稿失传,有两重可能,一是后人托古,2是他测量出来的.如果他的6丈多大圆,
[脑筋急转] - jinjing(112 bytes )
2011-12-18
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#跟帖# 好象city garden landscape scrool 合标题.
[脑筋急转] - jinjing(0 bytes )
2011-12-18
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#跟帖# ???,祖不可能,画,..,极可能后人托古,计算也值得怀疑,...,
[脑筋急转] - jinjing(86 bytes )
2011-12-17
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#跟帖# 祖冲，他在自己书房的地面画了一个直径1丈的大圆，内接正六边形一直作到12288边形，然后一个一个算出这些多边形的周长
[脑筋急转] - jinjing(0 bytes )
2011-12-17
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#跟帖# 我用半角公式算正512边形得PI>3.1415732
[脑筋急转] - jinjing(140 bytes )
2011-12-16
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#跟帖# 敬请出示答案.
[脑筋急转] - jinjing(0 bytes )
2011-12-16
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#跟帖# 是的,玩笑....,小孩背100个数不吃力.再说,多了也没用.
[脑筋急转] - jinjing(29 bytes )
2011-12-16
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#跟帖# 谢谢,可能有人想知道22/7和355/113的来历,...
[脑筋急转] - jinjing(200 bytes )
2011-12-16
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#跟帖# scroll
[脑筋急转] - jinjing(0 bytes )
2011-12-16
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#跟帖# GARDEN?
[脑筋急转] - jinjing(0 bytes )
2011-12-16
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#跟帖# Thanks,I knew 3.1416 only when I was a boy ,but this story let m
[脑筋急转] - jinjing(131 bytes )
2011-12-16
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#跟帖# 对,大多题是模式算法,本题不知意下如何,没模式,孩子挺聪明,自创模式.
[脑筋急转] - jinjing(69 bytes )
2011-12-15
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#跟帖# π = 3.1415926535897932384626...
[脑筋急转] - jinjing(148 bytes )
2011-12-15
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#跟帖# 贵子天才,279=like drink,944=drunk like like a dead man,898=stop dri
[脑筋急转] - jinjing(358 bytes )
2011-12-11
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#跟帖# 若是线性,则答案是：f(x)=665x - 386. f(3)=1995-386= 1609...哈,还是我对.
[脑筋急转] - jinjing(70 bytes )
2011-12-09
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#跟帖# 对不起,忘了是脑筋急转,不光是数学.
[脑筋急转] - jinjing(0 bytes )
2011-12-09
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#跟帖# 回谢,因没有定义关系,故答案不定,若是线性,则答案唯一,3=1609,4=19564.
[脑筋急转] - jinjing(112 bytes )
2011-12-08
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#跟帖# 3,30可以等于任何数,牛顿几百年前就知道.
[脑筋急转] - jinjing(0 bytes )
2011-12-08
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#跟帖# P(n)=P(n-1)=C(n-1,[n/2])/2^(n-1)
[脑筋急转] - jinjing(0 bytes )
2011-12-04
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#跟帖# 用古典型概率和几何解随机过程的题,故较难.
[脑筋急转] - jinjing(0 bytes )
2011-12-04
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#跟帖# 棒,概率树是最醒目的,尤其对无公式的题.
[脑筋急转] - jinjing(79 bytes )
2011-12-04
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#跟帖# 最后两块,有一有宝石,两人得的概率是一样的.
[脑筋急转] - jinjing(0 bytes )
2011-12-03
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#跟帖# 好象可称为古典概率和几何学的应用.
[脑筋急转] - jinjing(0 bytes )
2011-12-03
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#跟帖# 回复：Why the fourth student must cut a bow to form a square?
[脑筋急转] - jinjing(70 bytes )
2011-12-03
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#跟帖# P(10)= P(11)=35/128.笔误.
[脑筋急转] - jinjing(0 bytes )
2011-12-03
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#跟帖# I'm sorry ,you are not right, P(11)shold = P(10),so P(11)
[脑筋急转] - jinjing(598 bytes )
2011-12-03
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#跟帖# 回复：师生11人分半径一尺圆饼,有大长刀,尺各一把,每人切一刀,拿一块,
[脑筋急转] - jinjing(171 bytes )
2011-12-03
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#跟帖# 很巧,...我选11人的原因,
[脑筋急转] - jinjing(0 bytes )
2011-12-02
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#跟帖# ,每人切一刀,拿一块,只有最后4人可能拿到宝石,
[脑筋急转] - jinjing(64 bytes )
2011-12-02
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#跟帖# 相同的弓形与相同的距形.谢问.
[脑筋急转] - jinjing(0 bytes )
2011-12-02
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师生11人分半径一尺圆饼,有大长刀,尺各一把,每人切一刀,拿一块,
[脑筋急转] - jinjing(150 bytes )
2011-12-02
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#跟帖# P(K)=C(n,k)*C(N-n,m-k)/C(N,m), N=8, n=4, m=3, k=2
[脑筋急转] - jinjing(23 bytes )
2011-11-29
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#跟帖# Mine is right and your last is standard as it is f(d/2r).
[脑筋急转] - jinjing(0 bytes )
2011-11-29
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页次：1/11
每页50条记录，
本页显示1
到50，
共502
分页：
[1]
[2]
[3]
[4]
[5]
[下一页]
[>>]
[尾页]
|
| 备份档案：
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