1 . 已知全集
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442be389c6471b36eff2652b75beb114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fca9c5cecdeedd17d665a33b9774e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c845cb6b07fb5cfe04e47d7a537793.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-06更新
|
151次组卷
|
2卷引用:贵州省部分学校2024届高三下学期联考数学试卷
名校
2 . 已知正实数
,
满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272623df91554c2ebbf61f363eaaa673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd431067392a8350a0eb827dba39a31e.png)
A.0 | B.![]() | C.1 | D.![]() |
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2024-06-03更新
|
1434次组卷
|
3卷引用:贵州省凯里市第一中学2024届高三模拟考试(二模)数学试题
3 . 下列说法中正确的有( )
A.已知![]() ![]() ![]() |
B.函数![]() |
C.集合A,B是实数集R的子集,若![]() ![]() ![]() ![]() |
D.若集合![]() ![]() ![]() ![]() |
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4 . 集合
,
,求
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb0464d8dc78c40d7711b5104bb6533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a12ff778fcb84b6f0b0c1c6cddb785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知集合
,集合
且
,若
,则
的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73461bdae8b2f6793d43afd2e5dfe09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47293d8b87516992971d6ba498bcf4e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4f1cfeb3f6ccc8573760d5776007321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
6 . 在
中,角
所对的边分别为
且
.当
取最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2aa66f20c71359a8877729321c4981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd05757287dbdb9ae8f7b15bf6110849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
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2024-05-06更新
|
628次组卷
|
2卷引用:贵州省贵阳市第一中学2024届高三下学期高考适应性月考(七)(二模)数学试卷
解题方法
7 . 已知椭圆
的左、右焦点分别为
,抛物线
以
为焦点,过
的直线
交抛物线
于
两点,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
A.若![]() ![]() | B.当![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() | D.![]() |
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解题方法
8 . 已知抛物线
的焦点为F,直线l交抛物线T于A,B两点,M为线段
的中点,过点M作抛物线T的准线的垂线,垂足为N,若
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a79fb62bf112c4a8be625548db0ea92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7045662503f0cacd7736523f5ec928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c683d0f5034025be78bb6be865c8368a.png)
A.1 | B.![]() | C.![]() | D.![]() |
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2024-04-22更新
|
866次组卷
|
2卷引用:贵州省安顺市第二高级中学2023-2024学年高三下学期第一次模拟考试数学试题
解题方法
9 . 已知在
中,
,
(1)求A;
(2)若点D是边BC上一点,
,△ABC的面积为
,求AD的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4cec50513d6e2b1ec86401ea46c6f9.png)
(1)求A;
(2)若点D是边BC上一点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b6bef27de230acad352f25e954f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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10 . 已知集合
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8633875a34ae3630778d5c1c5f25a95e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d72bc3ebd480e761d156ae995abc1153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259c566521784eefae7b95b482936bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e445c42de18ae28ac6958fffe287003b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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