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1 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9f02851ab4331ccb1e57f44ef91702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3505503dfb8b6be71739a8e2fa316828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
您最近一年使用:0次
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2 . 已知集合
;
;
;
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e1ed58e1c3eac439553a125b922bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9d19578e25e279abab693dcea35f857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7171a1480948fc6032d5617486967f44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d4797ebddc00a1bc30aaf143ed50e0.png)
A.p是![]() | B.p是![]() |
C.p是![]() | D.以上都不对 |
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3 . 下列关于集合的符号表述中,正确的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知非空实数集
,
满足:任意
,均有
;任意
,均有
.
(1)直接写出
中所有元素之积的所有可能值;
(2)若
由四个元素组成,且所有元素之和为3,求
;
(3)若
非空,且由5个元素组成,求
的元素个数的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8647b00cc8c8f35555c7d78cf2812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb41fc59f3b73393137b5f94e226748f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d81972b1768d827ba3083f96a273412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44d6313ede330c096f56ddcc71f3954.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c450aa751cacd6442e82062d4b8b1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af500a4e28d6f5b38390b7642eb96ed5.png)
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2023-11-05更新
|
413次组卷
|
3卷引用:上海市上海中学2023-2024学年高一上学期期中数学试题
名校
5 . 考查关于x的方程
.
(1)若该方程的两个实数根
,
满足
,求实数t的值;
(2)若该方程在区间
上有且仅有一个实数根,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da93a70e39b8be2dc9304bdda733d236.png)
(1)若该方程的两个实数根
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202cbc7998d9a18604854a2d92141282.png)
(2)若该方程在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
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解题方法
6 . 已知全集
,集合
,若
,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e2d4cf897790ff539b9cedb5b80f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b950aba45cf5fe235d2ee3f6ed0c269b.png)
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解题方法
7 . 已知正实数x,y满足
,若不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afcc53aca3f577ad36164e91fd5b8847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解题方法
8 . 求下列方程或不等式的解集:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a682f09cc11857e49e0a7af17a7309.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a682f09cc11857e49e0a7af17a7309.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e18569e940a62f740fe0937a28c96d2.png)
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解题方法
9 . 已知实数x,y,z满足,则下列说法错误的是( )
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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解题方法
10 . 已知实数a,b,c,d满足
,则当
取得最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b751be741f255248afd1c48b5cb4d8eb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7acc70b6f0aa1c3b9a181abd29800e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e159c8203722a3c50784f7f6e65911e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b751be741f255248afd1c48b5cb4d8eb.png)
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