杭州交通信息网独栋别墅外观实景图:数学题!!99我
来源：百度文库 编辑：杭州交通信息网 时间：2024/05/05 17:44:39
5.(a) In a tiddlywinks tournament seven people play each other once,
with 2
points for a win, 1 point for a draw, and 0 points for a loss. During
the
tournament the players only know the results of their own games. How
may
points must a player score in order to be sure of finishing in the top
three(i.e. scoring more than at least four other players)?
(b) Suppose there are n players. how many points must one score in
order to
be sure of finishing in the top k?
with 2
points for a win, 1 point for a draw, and 0 points for a loss. During
the
tournament the players only know the results of their own games. How
may
points must a player score in order to be sure of finishing in the top
three(i.e. scoring more than at least four other players)?
(b) Suppose there are n players. how many points must one score in
order to
be sure of finishing in the top k?
兄弟 我给你做出来了.给你列个算式吧. for WXYZ is Rectangle, so 他的四个角都是直角. 我们假设 AZ为x AY 为y.那么BZ就为3-x tg<ABC=4/3=y/3-x.得到y=1/3(12-4x) S=1/3(12-4x)*x.
化简为S=-4/3(x-3/2)^2+3 x 为3/2时最大值为3 .答案为3