名校
1 . 已知集合
,
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113894538a4779efca78d229f8a2083f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5654abd61247c6aff6816194a2e544b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.{4,6} | B.{4,7} | C.{4,5,6,7} | D.{5,6} |
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解题方法
2 . 记
.
(1)若
,求
和
;
(2)若
,求证:对于任意
,都有
,且存在
,使得
.
(3)已知定义在
上
有最小值,求证“
是偶函数”的充要条件是“对于任意正实数
,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d80225e12934cd8d4ffc73d5fad815d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04beea76c59a6c5b096d8c5a3b77f8a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1b9f62690647a1597f4000ad5a64b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c8381377b90826897eb4bf16cb3bae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28034dcafe542a98d95d4504ad7d8a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4def7108b0a2338f07a0143b00b48271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3761d7ab4d00c91177fdbde67af36089.png)
(3)已知定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625e9d3c298a595678933b59583632c2.png)
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3 . 设集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f0ec80be21b41adac505f1a003245b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d639a1c5fb9f1352d3d8830d821c4e60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe81c68476c560313bde5dfa0343b02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-10更新
|
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名校
解题方法
5 . 下列说法中,其中正确的是( )
A.命题:“![]() ![]() ![]() ![]() |
B.化简![]() ![]() |
C.![]() |
D.在三棱锥![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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6 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948508e5766e70908f53c9a53324ceee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae0afc2ef2b7f0e7dec948c28b6631f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-29更新
|
683次组卷
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3卷引用:湖南省岳阳市2024届高三教学质量监测(三)数学试题
名校
解题方法
7 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52855c0b882fa776f6dbc6dfd721f263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204f3e599dc280ad99298b3a634923f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79834fa84d524505bc00a964e53aa4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618e20a86cde4e437a36a478153cf29a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-29更新
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9 . 已知集合
,
,若定义集合运算:
,则集合
的所有元素之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9a1e9dd14cbd2271ba2f472664ad57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c06860015b91cd0da6e70c4e678412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a2ed2517d87766baacb47808b8d583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5231cb0bfedf2f963c1830adfd74aa.png)
A.6 | B.3 | C.2 | D.0 |
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|
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名校
10 . 已知全集
,则集合
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96380cf7a6f6a2c29f6e557a862b9df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f7ab83c2c0bbcaabc2a177855d55d9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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|
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