1 . 设
均为正数且
,则使得不等式
恒成立的
的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffe3635b25158f4992ff437fa4b440c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8d26087a321c3276225c55f2829764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0168552a22e04214326ab4d5d8336015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2 . 已知函数
,(
,a为常数).
(1)若函数
是偶函数,求实数
的值;
(2)若
与
在
上的图象有两个不同的交点,交点横坐标分别为
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a39a5005c53d0e72546c0dfda5fdd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f68c6ed09e483db6edf0b4caf5e252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ca3aa2d1ba52e82613d0d65d800e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fde521d4904b3d90155647f32e51f0.png)
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解题方法
3 . 已知定义在R上的连续函数
,若存在常数
使得
对任意实数
都成立,我们称
是
上“
相伴函数”,下列关于“
相伴函数”的结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/593af5859ef0ad41335a04a0a73b1159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/449ed576650bafa9d437a59938ee41bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.常数函数均是“![]() | B.![]() ![]() |
C.“2024相伴函数”至少有一个零点 | D.“![]() |
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4 . 已知二次函数
.
(1)若对于任意
,且
为偶函数,求
;
(2)设
为函数
与x轴的两个交点的横坐标,且
,
,且当
时,
的最小值为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c035b8e60e79f90257e464ac6d5a060b.png)
(1)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f567efa4faa6de6cd98808df99c238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb19d43bf321e4019573260f189a7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c035b8e60e79f90257e464ac6d5a060b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f184ef9e0d57554e95f369c9d4bbfea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7afd9e226c9e45f674286910bc495e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c2ea39915aad1d3b55babc34636ef3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11f65c626db6450234cb130a091b766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f7968a9dafa18e1ae7138cae785c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f7968a9dafa18e1ae7138cae785c92.png)
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解题方法
5 . 高斯是德国著名的数学家,近代数学奠基者之一,用其名字命名的“高斯函数”为:设
,用
表示不超过x的最大整数,则
称为高斯函数.例如:
.已知函数
,则函数
的值域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e3204e4dc47a448860779349efcedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da763b988b46deb32c6b674dbcb248ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08c2ed7341e31259124493a14b93d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830588c70ff6f0b45a0b8b6d5c35d342.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
6 . 布达佩斯的伊帕姆维泽蒂博物馆收藏的达.芬奇方砖是在正六边形上画了具有视觉效果的正方体图案(如图1)把三片这样的达·芬奇方砖拼成图2的组合,这个组合再转换成图3所示的几何体.若图3中每个正方体的棱长为1,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/f0a56024-574d-4971-9ab6-2fbd48e8a2b0.png?resizew=427)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/f0a56024-574d-4971-9ab6-2fbd48e8a2b0.png?resizew=427)
A.![]() |
B.若![]() ![]() ![]() |
C.点![]() ![]() ![]() |
D.异面直线![]() ![]() ![]() |
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2024-03-12更新
|
359次组卷
|
8卷引用:浙江省杭州市六县九校联盟2023-2024学年高二上学期11月期中联考数学试题
浙江省杭州市六县九校联盟2023-2024学年高二上学期11月期中联考数学试题福建省莆田市2022-2023学年高二下学期期末质量监测数学试题黑龙江省哈尔滨市第九中学校2023-2024学年高二上学期9月考试数学试题(已下线)第七章 立体几何 专题3 组合体中的距离问题福建省厦门市海沧实验中学2023-2024学年高二上学期期中数学试题(已下线)专题07 利用空间向量计算空间中距离的8种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)广东省中山市广东博文学校2023-2024学年高二上学期第三次月考数学试题安徽省淮北市实验高级中学2023-2024学年高二上学期期末考试数学试题
名校
解题方法
7 . 已知锐角
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac9d94d065fb0f78bea55aaab684b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c3cd3502ff641fc9b8980c1567d688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46902ee9fbd30111d7831f1fc7b79641.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-11更新
|
637次组卷
|
3卷引用:2023新东方高一上期末考数学02
2023新东方高一上期末考数学02(已下线)第八章:向量的数量积与三角恒等变换章末重点题型复习(2)-同步精品课堂(人教B版2019必修第三册)江苏省镇江市扬中市第二高级中学2023-2024学年高一下学期3月情况调研数学试题
名校
解题方法
8 . 已知
(
且
)是
上的奇函数,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d1b5c221eae7af0c935cac8bb124f5.png)
(1)求
的解析式;
(2)把区间
等分成
份,记等分点的横坐标依次为
,
,记
,是否存在正整数n,使不等式
有解?若存在,求出所有n的值,若不存在,说明理由;
(3)函数
在区间
上的值域是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a6c5efcad0045395a02ec73b3ee976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d1b5c221eae7af0c935cac8bb124f5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)把区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094cba781181aeb90752170e9ba6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7231d936e5de602116cd7d8b15bc63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82faf5edc39020d5d05af82062c211f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d4da2bc8900b423d5112b7ed391a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/142865ccd70d68cde638b922372722f9.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711e45f600c091e6830c0b70cd012ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe4a50f074de19839092484240672d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8573eecbc29f522671b3892ec406c50b.png)
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名校
解题方法
9 . 函数
对任意的实数
,都有
,且当
时,
.
(1)求
的值;
(2)求证:
是
上的增函数;
(3)若对任意的实数x,不等式
都成立,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5511c6df12471be855702975c45498bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea998345984b6d1bbffa1e667365ed6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da3a6d011679952771607b3a166676b.png)
(3)若对任意的实数x,不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e3ea33f03473803778f02624cf4328.png)
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解题方法
10 . 已知实数
、
满足
,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c1f72914014361c9c5254644962eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab0ebb8c99e502fa24f7d37cdb5046e.png)
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