1 . 对于一个有穷正整数数列
,设其各项为
,各项和为
,集合
中元素的个数为
.
(1)写出所有满足
的数列
;
(2)对所有满足
的数列
,求
的最小值;
(3)对所有满足
的数列
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943dc79f529bc28f6ed17bc403d50f06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61928f8c6293140637ad8ca24555f473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95dc7685d36aa3057e48caf0f53df22.png)
(1)写出所有满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99ab9a4a0d517cf7138c6a78b481b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(2)对所有满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55bbebd71c677c2643a98d25c4c75184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943dc79f529bc28f6ed17bc403d50f06.png)
(3)对所有满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/011e8564732d55bcc518dba628d17718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95dc7685d36aa3057e48caf0f53df22.png)
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2023-01-05更新
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