1 . 已知正整数n都可以唯一表示为
①的形式,其中m为非负整数,
(
,
),
.试求①中的数列
严格单调递增或严格单调递减的所有正整数n的和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e29e08c9b326ab219a412122978999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64054e1dc13cdf5d44bb60f5fca4e9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b35b04bea0942e3b8837b93f23d884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbe875d5c4f08e2e01460e3336042dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531d350b35f85014d7c3ae357601d559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8c7dabcd00528f755c15cfa02993aa.png)
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2 . 已知方程
在区间(-2,2)内恰有两个实根,则k的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a259060fa6bf209ef620083ed557165a.png)
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3 . 函数
的值域为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363cf0801fe397b73100de2941bf2967.png)
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2011高三·广东·竞赛
4 . 方程
共个_________ 个解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76be27f91641e5cdf763bd38ea076ba0.png)
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2011高三·广东·竞赛
5 . 已知定义在正整数集上的函数
满足条件:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf24ff91a3e9be8f3ec15ed1d59aa7c8.png)
(2)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337fd7799fb1d899bf95e4a3f9e79fd5.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348ea9c3f7cd5a3788a1efecc27e688c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf24ff91a3e9be8f3ec15ed1d59aa7c8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38185a3b651e1664528741c4bbe32a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337fd7799fb1d899bf95e4a3f9e79fd5.png)
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