名校
解题方法
1 . 已知
,
,且
,则实数
的值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0c1d2e8d7f0485d9e127be381095b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf5a7c25d33a7b3a9da8e2d183eb9ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad96b50521f4bbf3d436d05dc258083d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
2 . 集合
,
,且
,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d97394abd6e46573a769e18993afcd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebc78c24d764e0d6fca15335ad76f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.3 | B.-1 | C.3或-1 | D.1 |
您最近一年使用:0次
2020-02-02更新
|
509次组卷
|
5卷引用:甘肃省宁县第二中学2020-2021学年高一第一次月考数学试题
名校
解题方法
3 . 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:甘肃省白银市白银区大成学校2023-2024学年高一上学期期中考试数学试题