神马品牌网助人为乐作文:数学题!!9999我
来源：百度文库 编辑：神马品牌网 时间：2024/05/07 16:16:38
1. a rectangle AXYZ fits in the corner of a 3-4-5 right angleed
triangle ABC, with X on the side AB, Y on BC and Z on CA. what is the maximum
possible area of AXYZ?
3.Heigh-ho, heigh- ho! The Swven Dwarves are off to work. Each day
they
work in four"teams"
- at least one of which inevitably contains just on Dwarf! Their goal
is to
split up each day in a new way. For how many days can they keep this
up?
(b)Suppose Snow White joins them, but they still work in four teams.
For how
long can they split up in a new way each day?
triangle ABC, with X on the side AB, Y on BC and Z on CA. what is the maximum
possible area of AXYZ?
3.Heigh-ho, heigh- ho! The Swven Dwarves are off to work. Each day
they
work in four"teams"
- at least one of which inevitably contains just on Dwarf! Their goal
is to
split up each day in a new way. For how many days can they keep this
up?
(b)Suppose Snow White joins them, but they still work in four teams.
For how
long can they split up in a new way each day?
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
sorry
I don't know