若
,则下列结论中正确结论的序号是______ (写出所有正确结论的序号)
①
; ②
; ③若
,
,则
; ④若
,
且
,则
; ⑤
,
,则
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18d00bf14130cc96d9368910cabef7d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab63507bfedb4cfc46ca1da16ccaca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e766d4770bc479928ab57c6c589124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f454719abc6d2197b1fc9755d587ea1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b6c695a165035ba95b82470801f9327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f454719abc6d2197b1fc9755d587ea1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1b87613e5700880384c5a3e3112c2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4b30ac77436082a08dcc16bbffd490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f81d24849a48882055598f0bf4dfca1.png)
更新时间:2019-11-08 22:37:23
|
【知识点】 判断元素与集合的关系解读
相似题推荐
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】已知
均为非零实数,则代数式
的值所组成的集合的元素个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfcf13d350842856f2b859c789e736d7.png)
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填空题-单空题
|
适中
(0.65)
名校
【推荐2】设
是整数集的一个非空子集,若集合
满足:①
;②对于
,都有
,此时就称集合
具备
性质.给定
,由
的3个元素构成的所有集合中,具备
性质的集合共有________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa76e368f51346a8bfc1b8ed788a8ae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfa603e8f0aade39e45b2d4f6e88e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bae627087fe034120f1e526efe7ac7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55e3275b2a91065fbb1c8e13cf52e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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