名校
解题方法
1 . 已知
为有穷数列.若对任意的
,都有
(规定
),则称
具有性质
.设
.
(1)判断数列
是否具有性质
?若具有性质
,写出对应的集合
;
(2)若
具有性质
,证明:
;
(3)给定正整数
,对所有具有性质
的数列
,求
中元素个数的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78dab5f68d424caa15eb7686f8ac2249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae415a09c33aa3e9d1a3dab6c522dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7e9edf6d0468e0f8ca78b8bac63bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b740bc48c9718a294c11a1485fd14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f21d7bf91134d8d08668cee5dacc2e8.png)
(1)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd984b8eee88a2c10df0e883c9ef67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed1adc648cc7d8fe7ac43df4b918f11.png)
(3)给定正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2023-01-05更新
|
679次组卷
|
6卷引用:北京市西城区2023届高三上学期数学期末试题
名校
解题方法
2 . 对任意的非空数集
,定义:
,其中
表示非空数集
中所有元素的乘积,特别地,如果
,规定
.
(1)若
,请直接写出集合
和
中元素的个数.
(2)若
,其中
是正整数
,求集合
中元素个数的最大值和最小值,并说明理由.
(3)若
,其中
是正实数
,求集合
中元素个数的最小值,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334e66713c1bb166178d5250f85bce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c363cfd3ada27d5756b6f6512f4b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abfc0853aa05ca4ea6a80b7db3a9f702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2dd216be69d8aa90c1a09d67f15374d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e88ec106805854932acac7773085e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29b2c411cea591bb0352687b73fa1df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9cad3d008dc3dc18be02b702f7937ce.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0616b5ffd9092ac782e5bb529482a04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56729bd5cfde71dd6d04780792a70b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376e5582c1942682ee5ddb3831d09610.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaae479eb6c8af3d600ae81dbf91fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02c5330613e7a260dee6b7914ccd0d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376e5582c1942682ee5ddb3831d09610.png)
您最近一年使用:0次
2023-06-14更新
|
382次组卷
|
3卷引用:北京市西城区北京师范大学附属实验中学2023-2024学年高一上学期期中测验数学试题