名校
1 . 已知集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fc9b0f9d6c9ab9ce68ae3799a0edc0.png)
(Ⅰ)
,求
;
(Ⅱ)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d966ae971832cdcf505307fe7009c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fc9b0f9d6c9ab9ce68ae3799a0edc0.png)
(Ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551fd8cd8ea61d794c13074ccd7d6c4e.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbd4418deb29799fdabd85e1189b0b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-02-23更新
|
1599次组卷
|
5卷引用:江西省上高二中2022届高三8月月考数学(文)试题
名校
2 . 若集体
,
,若
,求出实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604c570214eea2657ec51074a4b55943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d7e64483db0408bbc4256cb115c49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-01-05更新
|
360次组卷
|
3卷引用:江西省泰和中学2022-2023学年高一上学期期末数学试题
名校
3 . 设函数
.
(1)若
的最小值是
,求
的值;
(2)若对于任意的实数
,总存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6badf9bd4ba4da6ddb9bb98fd8a67e48.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对于任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a70cc620c554aa6d6acef1264c919394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d2f9b1274effec7105bfc5e7eb7b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-04-27更新
|
1202次组卷
|
5卷引用:江西师范大学附属中学2018年10月高三月考理科数学试题
名校
解题方法
4 . 已知
,集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c005028d3af4d4b988edd91b1162b7b5.png)
(1)若
,求集合
(用区间表示);
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45634a4f2180e248a4ba677388de92fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c005028d3af4d4b988edd91b1162b7b5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad96b50521f4bbf3d436d05dc258083d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-11-21更新
|
890次组卷
|
5卷引用:江西省抚州市临川区第一中学2017-2018学年高一上学期期中考试数学试题
5 . 已知命题
:
,命题q:
若
是q的充分不必要条件,求
的取值范围 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece8bee2ffe60214fb97f63f8a3c640f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828d89e7960c4231d18798d6ecb7ca9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
622次组卷
|
5卷引用:【校级联考】江西省吉安市几所重点中学2018-2019学年高二上学期联考数学(文)试题
解题方法
6 . 已知集合A={x|x2﹣8x+12≤0},B={x|5﹣2m≤x≤m+1}.
(1)当m=3时,求集合A∩B,A∪B;
(2)若B⊆A,求实数m的取值范围.
(1)当m=3时,求集合A∩B,A∪B;
(2)若B⊆A,求实数m的取值范围.
您最近一年使用:0次