求满足下列条件的最小正整数t,对于任何凸n边形
,只要
,就一定存在三点
,使
的面积不大于凸n边形
面积的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd76ce38a05b798d45147dd2fe05294e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0166ef16246534081188fce28684b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75245070263484fc737f7bacc16a807e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846c13953ba2a1c0a2113ad4c067ca78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd76ce38a05b798d45147dd2fe05294e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6a2eba56d4f2d1670b0256b8d86b92.png)
2019高三·全国·竞赛 查看更多[1]
更新时间:2018-12-26 22:45:50
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【知识点】 第一数学归纳法
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解答题-问答题
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较难
(0.4)
【推荐2】对给定的正整数
,定义
表示
的各个数位上的数字之和的平方,当
且
时,
表示
的各个数位上的数字之和的
次方,其中,当
为奇数时,
;当
为偶数时,
,试求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1580d1acb1ef184208d8a49694398cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac69e6db1df13ed64756b4f391ae9fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1622aec09c560184b0d253a7f53bf1bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e90a6d7b5f61955a1d963892fc7bf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a135cb036833400f3fa1edc92d5ce410.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3301f1a7b308916e5de17c38ebf1c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029698978fcc20c10240e1dbcc1ec37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0030cefcfe3ce06aa02e80c4e2b351.png)
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