1 . 给出下列命题:①“
”是“
”的充分不必要条件;②设
,
,若
,则实数
的取值范围为
;③若
,则
;④存在
,
,使
;⑤若命题
:对任意的
,函数
的单调递减区间为
,命题
:存在
,使
,则命题“
且
”是真命题.其中真命题的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2053e1f50472a9fed67d4c84d9cb938.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b18fd99b9cf551fe9b6c20712b43690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513476ba76545dc22a28ab04d408600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19ae495b3d5fc27baf432bb1673353e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d62778cf443743b33383960b106f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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名校
2 . 如果集合
满足
,则满足条件的集合
的个数为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7c27f54c962eb5bfba1dfd6fc52ac0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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解题方法
3 . 已知集合A={x|x≤1},B={x|x<a},且A
B=B,则实数a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321a57dd129e992d7834e91961987bd1.png)
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名校
解题方法
4 . 集合
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd29e945480ed186ea667e2d339e24ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ffc521281e9158bfdf9b101c772934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2023-01-05更新
|
557次组卷
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8卷引用:广西桂林市灵川县潭下中学2022-2023学年高一上学期10月段考数学试卷
广西桂林市灵川县潭下中学2022-2023学年高一上学期10月段考数学试卷福建省南安市侨光中学、南安市昌财实验中学2022-2023学年高一上学期第一次联考数学试题黑龙江省哈尔滨市第一中学校2023-2024学年高一上学期第一次质量检测数学试题福建省武夷山市第二中学2023-2024学年高一上学期10月月考数学试题山东省临沂市蒙阴县第一中学2023-2024学年高一上学期第一次月考数学试题天津市滨海新区塘沽第一中学2023-2024学年高一上学期第一次月考数学试题江苏省无锡市宜兴市丁蜀高级中学2023-2024学年高一上学期第一次独立作业数学试题广东省鹤山市第一中学2023-2024高一上学期第一阶段考试数学试题
5 . 满足条件
的集合
有______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0f4226d6e18f1fb1d63fe4b5a0bd84e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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6 . 命题:
,
有实根的否定为______ 命题(填“真”或“假”)。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7b784381c282fc5f788485316c943c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b499373cc8cee8105e9bc457e69d8e0.png)
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解题方法
7 . 已知
,若
是
的充分不必要条件,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e297e1d132350745160136eb3bc47ef.png)
![](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/0a6936d370d6a238a608ca56f87198de.png)
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2023-01-04更新
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206次组卷
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3卷引用:广西桂林市逸仙中学2022-2023学年高一上学期10月月考数学试题
名校
8 . 已知函数
,且
,则实数a的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbad79bf8af71bd5dcc309fcf2fe4f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e9beb0adcc92933d8ffbf8b74fe28a.png)
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2022-12-17更新
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3卷引用:广西壮族自治区钦州市第四中学2023届高三上学期10月考试数学试题
9 . 设有两个命题
,
,其中命题
:对于任意的
,不等式
恒成立;命题
在
上为减函数.如果两个命题中有且只有一个是真命题,那么实数
的取值范围是__ .
![](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/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b92b167d4dfd83382cc1719971d866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1a52cdcd3da43034dc3979c1b5b0a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 已知集合
,
,且
,则实数
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6de2e9b95c70f73b2901346da9f5cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44018e867171c56c511f8d0a948a7f3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906ea02bdb4a1f6dc7d477109486c6de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-11-15更新
|
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5卷引用:广西百色民族高级中学2022-2023学年高一上学期12月月考数学试题