名校
1 . 设集合
满足若
,则
.
(1)若
,则
中至少还有几个元素?求出这几个元素.
(2)
能否为单元素集合?请说明理由.
(3)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd268d6ddbb399da49fd124a38ae05f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d36e6f98ce73926fe1249c1f9dc7e9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a92ba9085f0e167023c4e27236ed539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd268d6ddbb399da49fd124a38ae05f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d36e6f98ce73926fe1249c1f9dc7e9.png)
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2016-12-05更新
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332次组卷
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2卷引用:2016-2017学年山西怀仁县一中高一上月考一数学试卷