1 . 设
,
,
,…,
是1,2,3,…,7的一个排列.且满足
,则
的最大值是_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd71bc7e6668f90f259ad0b06dd60c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e0e6fedc8293427cba17ac891ee35d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c115899f562d0f638d6f0f904c14d89.png)
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2 . 已知集合
,且
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b455ee5305faa2a2b14239a7ee02fb64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff109d3fadee141f93b199a5a72bc161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7日内更新
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244次组卷
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3卷引用:河南省郑州市中复教育2023-2024学年高三下学期5月月考数学试卷
河南省郑州市中复教育2023-2024学年高三下学期5月月考数学试卷广西南宁市第三十六中学2024届高三下学期适应性训练数学试题(已下线)高二数学期末模拟试卷01【好题汇编】-备战2023-2024学年高二数学下学期期末真题分类汇编(北师大版2019选择性必修第二册)
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解题方法
3 . 设
,记
为
三个数中最大的数,则
的最小值_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67784e0c5b774a658b3c12fe05800df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc086be29684f07f3777e7d8fc62e038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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解题方法
4 . 已知函数
,下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f1b5eba5365dfeef54512c5757ef50.png)
A.函数![]() ![]() ![]() |
B.对于![]() ![]() |
C.若![]() ![]() |
D.若对于![]() ![]() ![]() ![]() ![]() ![]() |
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5 . 已知
,若存在
,使得
,则称函数
与
互为“
度零点函数”. 若
与
互为“1度零点函数”,则符合条件实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6139874948845d6643add178d218113d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73473d8859a59049c16724051ef585f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95ddc4b4add7f825a74246bad338808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a3c3763d6399a518467a760e3e42622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b33722ed005cd32c488a2c1941b705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 下列说法中,错误的为( )
A.有一个面是多边形,其余各面都是三角形的几何体是棱锥; |
B.有两个面互相平行,其余四个面都是等腰梯形的六面体是棱台; |
C.底面是等边三角形,侧面都是等腰三角形的三棱锥是正三棱锥; |
D.棱锥的侧棱长与底面多边形的边长相等,则此棱锥不可能是正六棱锥. |
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7 . 已知
为奇函数,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57357eb47c01b6864e8e4863079b52ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deccee6c667f52c4b217fd65dc8ebae8.png)
A.![]() | B.14 | C.![]() | D.7 |
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8 . 已知双曲线
,过实轴所在直线上任意一点
的弦的端点
与点
的连线所成的角被焦点所在的直线平分,即
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8c5d1ac937ed36b1090d3f259ea1f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d4ba1fa3c2844799756e3b50d52dd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbd8e930408108eb4d41d74554f2ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如图,在底面
是矩形的四棱锥
中,
,点
在底面
上的射影为点
与
在直线
的两侧
,且
.
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01f7f3bd1c701bf81f4a775136c5443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad2041eace3c1f44542d2afcab2dcf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae890f9e8b32aa53a54158f24f4a87bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4e813c2b7a248470b1ebef5b8bdcb4.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4d781525777c7b5284dffc70b2a28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b489c25405ce48699d4f0a62820bed.png)
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2024-06-13更新
|
528次组卷
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3卷引用:河南省郑州市中复教育2023-2024学年高三下学期5月月考数学试卷
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10 . 已知三棱锥
是边长为2的正三角形,
分别是
的中点,
在平面
内的投影为点
在平面
内的投影为点
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899bb37ff0e8075cf8cf7d589be7d50d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a398d4645333a88e4a0816d5b7087702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b085fab4fc7b49bead663650b3bdeb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9521129014e5f138b49339d5b9f4dda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f526e2fe627bb4ddebe708c07d0a22fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() |
B.![]() ![]() ![]() |
C.![]() |
D.形如三棱锥![]() |
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2024-06-12更新
|
450次组卷
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3卷引用:河南省郑州市2024届高三第三次质量预测数学试题