解题方法
1 . 设
且
,函数
,两函数的定义域分别为集合
,若将
.
(1)试求函数
在
上的单调性;
(2)若
,函数
在
上的值域恰好为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e7581a9b1bdf7e15be780aaaecc4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2591474c35ae00ca5a402a654e45079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57d6b8895d2791434d2aa84c344c69e.png)
(1)试求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5313c921defe84689aefde4773ad2b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc402f843459c40b8a24113590e27e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
425次组卷
|
2卷引用:2015-2016学年湖南省常德市一中高一上学期期中数学试卷
2 . 《九章算术》中,将底面为长方形且有一条侧棱与底面垂直的四棱锥称之为阳马,将四个面都为直角三角形的四面体称之为鳖臑.
如图,在阳马
中,侧棱
底面
,且
,过棱
的中点
,作
交
于点
,连接 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9239dd73df715a39ae6f3f69f14a92.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/fdfbbd24-8548-41c1-8788-6c0994e50143.png?resizew=175)
(Ⅰ)证明:
.试判断四面体
是否为鳖臑,若是,写出其每个面的直角(只需写
出结论);若不是,说明理由;
(Ⅱ)若面
与面
所成二面角的大小为
,求
的值.
如图,在阳马
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e2267c84394668eff2e9f5918de4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4a6a1e70241d600bc6c104313eac61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9239dd73df715a39ae6f3f69f14a92.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/fdfbbd24-8548-41c1-8788-6c0994e50143.png?resizew=175)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/017797398acdf601fd6f40b1e20e8751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc50ecfa45216f8d098662452cf8d08.png)
出结论);若不是,说明理由;
(Ⅱ)若面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54625f5af5647c5dad88675510c4711b.png)
您最近一年使用:0次
2016-12-03更新
|
5800次组卷
|
33卷引用:湖南省常德市临澧县第一中学2023-2024学年高二上学期第一次阶段性考试数学试题
湖南省常德市临澧县第一中学2023-2024学年高二上学期第一次阶段性考试数学试题2015年全国普通高等学校招生统一考试理科数学(湖北卷)浙江省绍兴市诸暨中学2019-2020学年高一(实验班)下学期期中数学试题浙江省宁波市六校联考2020-2021学年高二上学期期中数学试题(已下线)【新东方】高中数学20210323-001【高二上】高中数学解题兵法 第八十七讲 立足基础、树上开花(已下线)第一章 空间向量与立体几何(培优必刷卷)-2021-2022学年高二数学上学期同步课堂单元测试(人教A版2019选择性必修第一册)(已下线)专练9 专题强化练3-立体几何中的存在性与探究性问题-2021-2022学年高二数学上册同步课后专练(人版A版选择性必修第一册)(已下线)期中考试重难点专题强化训练(1)——向量的综合运用-2021-2022学年高二数学单元卷模拟(易中难)(2019人教A版选择性必修第一册+第二册)(已下线)上海市华东师范大学第二附属中学2021-2022学年高二上学期期中数学试题苏教版(2019) 必修第二册 一课一练 第13~15章综合检测北京市第二中学2022届高三上学期期中考试数学试题(已下线)上海高二上学期期中【常考60题考点专练】(2)(已下线)上海高二上学期期中【易错、好题、压轴60题考点专练】(2)重庆市育才中学校2022-2023学年高一下学期期末数学试题(已下线)上海高二下学期期末真题精选(压轴60题35个考点专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)(已下线)第3章 空间向量及其应用(基础、常考、易错、压轴)分类专项训练(原卷版)(已下线)高二下期中真题精选(易错46题专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)辽宁省大连市第八中学2021-2022学年高二上学期期中考试数学试题辽宁省大连市第八中学2020-2021学年高二上学期9月月考数学试题(已下线)高一下期中真题精选(易错60题专练)-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)辽宁省大连市大连王府高级中学有限公司2023-2024学年高二上学期10月月考数学试题湖南省张家界市民族中学2023-2024学年高二上学期第一次月考数学试题(已下线)第一章 空间向量与立体几何(压轴必刷30题4种题型专项训练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)(已下线)期中真题必刷易错40题(17个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)(已下线)期末真题必刷压轴60题(22个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)(已下线)期末真题必刷易错60题(32个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)福建省莆田市第二中学2023-2024学年高二下学期返校考试数学试卷(已下线)压轴题立体几何新定义题(九省联考第19题模式)练(已下线)第七章 应用空间向量解立体几何问题拓展 专题二 平面法向量求法及其应用 微点1 平面法向量求法及其应用(一)【基础版】(已下线)专题23 立体几何解答题(理科)-3(已下线)上海市高二下学期期末真题必刷01(易错题)--高二期末考点大串讲(沪教版2020选修)(已下线)上海市高二下学期期末真题必刷04(压轴题)--高二期末考点大串讲(沪教版2020选修)
3 . 在平面直角坐标系中,已知曲线
(
为参数),在以原点为极点,
轴的正半轴为极轴建立的极坐标系上有曲线
,设点A,B分别在曲线
、
上,则
的最大值为_______ .
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171417600/STEM/6742a02ea8364c389b9ad0db3836331e.png?resizew=121)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171417600/STEM/f279d4146f9e4b6a8147b45a87b570e6.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171417600/STEM/e35829b99ec34cbc87f24b7b95c27731.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171417600/STEM/f38efe786f38439eb288b389a078b5d0.png?resizew=19)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171417600/STEM/7c7c5e5c8f1b4330875147d2a218c642.png?resizew=20)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171417600/STEM/2530f7c3254b47878c52d2258eeef284.png?resizew=2)
您最近一年使用:0次
4 . 已知函数
,其中
为实数.
(1)求函数
的极大值点和极小值点;
(2)已知函数
的图象在
处的切线与
轴平行,
.且对任意
,存在
,使得
,求实数
的最小值(其中
为自然对数的底数).
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/8b9faf2ea0524627b7f4c634530f34a6.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/98857560f1984e01b78c4e0cb8173f21.png)
(1)求函数
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/7dc41192e2b64bf0a9d297197a94f06d.png)
(2)已知函数
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/7dc41192e2b64bf0a9d297197a94f06d.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/49a806d2a31e435bb7e3b6d539773093.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/0c89faec5fec4fea8661bafc75f594dd.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/8945b22f833b440f91e991fe4a3efedf.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/9f6189cb18e3479aaaf78194d23b4545.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/e54c48b9d0bf4bc1b2e4fbcd3419b47b.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/b3f9b823528d499aa693e6b5a1eaaee4.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/5508ef8bc5884d52ac4d1a27cbc0be77.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171679744/STEM/2f075c6e465f426c80961589ae2537c9.png)
您最近一年使用:0次
5 . 已知O为坐标原点,双曲线
-
=1(
)的右焦点为F,直线![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171442176/STEM/e78db9925ef34a8c92d9d72f3496f7eb.png?resizew=16)
与双曲线的一条渐近线交于点
,且
的面积为
,则该双曲线的两条渐近线的夹角大小为_______ .
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171442176/STEM/c2cb0537ee224758bcb07296dc541c53.png?resizew=24)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171442176/STEM/e3a9d0ee892241f3bccd0c681f5ffd58.png?resizew=24)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171442176/STEM/7b083f4e682e43be925f01670f14d404.png?resizew=79)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171442176/STEM/e78db9925ef34a8c92d9d72f3496f7eb.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171442176/STEM/b9819147305c4c53812a5a059c1af276.png?resizew=49)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e55b85a1dc91ee8a026ad44e82d42b8.png)
![](https://img.xkw.com/dksih/QBM/2015/3/18/1572016165920768/1572016171442176/STEM/8ec2f59e2da649b4baca9a47bcec3c32.png?resizew=24)
您最近一年使用:0次
6 . 过抛物线
上一定点![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/d7a7db5a142744aba933ef9b55ce4f96.png)
,作两条直线
分别交抛物线于
,
,当直线MA与MB的斜率存在且倾斜角互补时,
的值是
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/f5278d4486c94539a224a03009c3aced.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/d7a7db5a142744aba933ef9b55ce4f96.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/eb3512b349754eb0a106d2009c60e9da.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/d5a839edb8344c2cb57d5c257bff84e5.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/7bb3a04cb9824973bf01196612675576.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/1a7646ccfc0c4c4eadd8d71e1321ed43.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571961081126912/1571961086787584/STEM/479e558ceb5d4e8ebb18fb1218aefbdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知函数![](https://img.xkw.com/dksih/QBM/2015/1/14/1571960953225216/1571960959246336/STEM/c1403d4672d943d39983f393f9dfb64d.png)
(Ⅰ)讨论函数
的单调性;
(Ⅱ)设
.如果对任意
,
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571960953225216/1571960959246336/STEM/c1403d4672d943d39983f393f9dfb64d.png)
(Ⅰ)讨论函数
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571960953225216/1571960959246336/STEM/ab97fb500062454b840bbdbdbdbb4fa7.png)
(Ⅱ)设
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571960953225216/1571960959246336/STEM/efec0dd36969440da7fd586d5594e210.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571960953225216/1571960959246336/STEM/b08ce753c06c4612bfc0dc210f973058.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571960953225216/1571960959246336/STEM/61a0c70a16e24b5ea279e3ad7d8e0e74.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571960953225216/1571960959246336/STEM/2a02704e043f472282e9a6639e32676b.png)
您最近一年使用:0次
13-14高二下·湖南常德·期末
8 . 对函数f(x),若
为某一个三角形的边长,则称
为“
三角函数”,已知函数
为“
三角函数”,则实数m的取值范围是
![](https://img.xkw.com/dksih/QBM/2014/7/23/1571824037478400/1571824043048960/STEM/f01349a418864247a13ed45af4f14fbd.png)
![](https://img.xkw.com/dksih/QBM/2014/7/23/1571824037478400/1571824043048960/STEM/85986422f9134628b9ba8e8e5caa1ffd.png)
![](https://img.xkw.com/dksih/QBM/2014/7/23/1571824037478400/1571824043048960/STEM/ca5fbbf59e6d4a739be94c914718a705.png)
![](https://img.xkw.com/dksih/QBM/2014/7/23/1571824037478400/1571824043048960/STEM/128f7dc11f8b4476b63ea1df1cc0991d.png)
![](https://img.xkw.com/dksih/QBM/2014/7/23/1571824037478400/1571824043048960/STEM/ca5fbbf59e6d4a739be94c914718a705.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
真题
名校
9 . 已知数列
满足
,
.
(1)若
为递增数列,且
成等差数列,求
的值;
(2)若
,且
是递增数列,
是递减数列,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28dbfa38d09eb8228c1503a374c7ee6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d726666f99a5a41dd673a2330e377b17.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccadf5fe0d8a09ac97324ad2d9f60f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f970f380a12c843bb4a74ff34a15b2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc383c64f1182577bc35c8ec69efd815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd73bb86944362b433be016d442f71d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
您最近一年使用:0次
2016-12-03更新
|
3673次组卷
|
10卷引用:湖南省常德市第一中学2023届高三下学期第十一次月考数学试题
湖南省常德市第一中学2023届高三下学期第十一次月考数学试题2014年全国普通高等学校招生统一考试理科数学(湖南卷)2015-2016学年安徽省合肥市一六八中高二上开学考试理科数学试卷2016-2017学年广东清远三中高二上学期第一次月考数学(理)试卷2018届高三数学训练题(38):等比数列 人教A版 成长计划 必修5 第二章数列 高考链接上海市上海中学2017-2018学年高三下学期5月适应性考试数学试题(已下线)专题17 数列的概念与数列的通项公式-十年(2011-2020)高考真题数学分项(已下线)专题8 等比数列的单调性 微点1 判断等比数列单调性的方法(已下线)专题21 数列解答题(理科)-1
2014·湖南·二模
10 . 如图,在四棱锥
中,
平面
,
,且
,
,
,点
在
上.
![](https://img.xkw.com/dksih/QBM/2016/1/20/1572452507246592/1572452513316864/STEM/0e878378d5bd4d9bbb7d9dc88caa3e2f.png?resizew=253)
(1)求证:
;
(2)若二面角
的大小为
,求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1750703a4d8ad6595e9ac955d27742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2478a116f8ff83c8477094e97c4211cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d768ffd5bf75080e8ff5ce6b472c0cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2016/1/20/1572452507246592/1572452513316864/STEM/0e878378d5bd4d9bbb7d9dc88caa3e2f.png?resizew=253)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafa8c14100a4f847b41b9148954116c.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698335f4880c7a298f4898c83b6562bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2016-12-03更新
|
2810次组卷
|
8卷引用:2016届湖南省常德一中高三第十一次月考理科数学试卷
2016届湖南省常德一中高三第十一次月考理科数学试卷(已下线)2014届湖南省高三十三校联考第二次考试理科数学试卷2015届湖南省长浏宁三一中高三5月模拟考试理科数学试卷2016届河北省正定中学高三上第五次月考理科数学试卷【区级联考】云南省曲靖市陆良县2019届高三上学期第一次摸底考试数学(理)试题(已下线)2022年全国高考甲卷数学(理)试题变式题9-12题(已下线)2022年全国高考甲卷数学(理)试题变式题9-12题(已下线)2022年全国高考甲卷数学(理)试题变式题17-20题