1 . 设函数
的定义域为
,集合
,记
.
(1)若
,求
;
(2)若
是
的必要不充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4567f7764e1b5428ac7535f568f54226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e002d73750547adb99527f2ae709efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1172c80b0d9bcb52d4071f27171819ad.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361048fd1b1a7f3b7230404a04b7155a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2 . 已知全集
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ca963cc82ca5d5e6c890ec5899dd6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ba5b75c0e8b25289f361e5680023f1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知全集
,集合
,
,则等于
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f71ec966f98652da4ad512d456d067b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0371ee50d839798126e465309675ce59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016902b9ee5cc7ce398a8e5f11609037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f7b2436f432e3fc2f2679ee52dca1d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-08-31更新
|
639次组卷
|
3卷引用:宁夏中卫市海原县第一中学2019-2020学年高一上学期期末数学试题