1 . 已知非常数的整系数多项式
满足
.①证明:对所有正整数
,
至少有五个不同的质因数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00a1cbe1c4b9d730539f1063ab272c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96f88ff78d33299bb956eafaa33c645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
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2 . (1)若正整数n可以表示成
)的形式,则称n为“好数”.试求与2的正整数次幂相邻的所有好数.(2) 试求不定方程
的所有非负整数解
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a123e4055c207baef618f3ffd0e35a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ab0eb1a495357b362780599c7efe80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f170557ffb23bd43c7424e0c239f53.png)
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3 . 设直线与函数
的图像恰有两个不同的公共点.求出所有这样的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7ec9f1afdeaf74024bc6009ee39ed9.png)
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4 . .设数列
定义为
证明:
(1)当
时,
;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2543c7c9a423923b80e8992386dc0901.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7570de15dc9f0ce429965d285074474.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ebf13e7dcac5fdc3042ebae642d29f5.png)
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5 . 已知函数
满足①
均大于0;②对于任意的
,
均为整数;③
.试判断,对于每个整数
是否为整数,并对你的结论给出论证.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363b32cd053fc0d99c6054316c788fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2a9a675d8aaca772c6c17b4ef3de66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e089c2e3a6115d65f54e9e3142518bb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b0674f15d84e56ddd6a9b300d81910.png)
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6 . 设集合
,
是从
到
的映射,且满足
.试求所有的三元数组
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8cc9eadd876375c632dcae8dc84e73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0064142f65846425d1e25782b1863543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d55fbe086258e934156b453a59b649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee815c692753896c5e2167eca23b202d.png)
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2007高三·湖北·竞赛
7 . 设
.则函数
的最小值为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641cbceaff7cc03ad5e29782262194c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d955b211fb15279a1ef06b7a5cf9c03d.png)
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2006高三·山东·竞赛
8 . 以椭圆
(a>1)的短轴端点B (0,1)为直角顶点作椭圆的内接等腰
.若这样的三角形有且只有一个,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dae6629e0dbf18af625cb804874afb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8008eab22184d57ef7d4258f2188f5c8.png)
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9 . 设
是给定的自然数,求所有正数对
,使得
是
的因式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78741a97a0a948f1e681344c559bc590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7f01589663ccab70a8ded1df3becd0.png)
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