解题方法
1 . 已知非空集合
, .①函数
的定义域为集合B;②不等式
的解集为B.试从以上两个条件中任选一个补充在上面的问题中,并解答.
(1)当
时,求
;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9380c244f52915d67b0748c44417caa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3b4829460a01f7862d2091eebe385f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f436a06e0cd9d2a0a1a8b219f33b79.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
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2022-07-08更新
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477次组卷
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3卷引用:江苏省淮安市2021-2022学年高二下学期期末数学试题
江苏省淮安市2021-2022学年高二下学期期末数学试题【江苏专用】专题12(一轮复习)集合与常用逻辑-高二下学期名校期末好题汇编(已下线)期末考试押题卷一(考试范围:苏教版2019必修第一册)-【帮课堂】(苏教版2019必修第一册)
解题方法
2 . 设函数
.
(1)若方程
的解集为
.
①求
,
的值;
②求
的值.
(2)若
,问:是否存在实数
,使得对所有满足“
,
,且
”的实数
,都有
成立?若存在,求
的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1cfc162fb9bb562f3c7856efaca3c76.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c997d0922d59cf3eee3c4a5bc6286d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0abbbd6eb657ab50ea9d1376e70fdc28.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea01942c672264b9f8830d3af9b9ba9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6270bb08b90f72d5671ab8225f356c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2fe3251e054fe97089806ba7033f802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ae395b9e1dfb37685b441c68bcdc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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