名校
解题方法
1 . 如图,已知正方体
的棱长为1,点M为棱AB的中点,点P在侧面
及其边界上运动,下列命题:①当
时,异面直线
与
所成角的正切值为2;②当点
到平面
的距离等于到直线
的距离时,点
的轨迹为拋物线的一部分;③存在点P满足
;④满足
的点P的轨迹长度为
;其中真命题的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/5756826a-6630-4dab-86e8-13c016161522.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710fb03332ec8c51992c34dd70572307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0aace589f614b7cfe067ba6f4b8aaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c963323f3132ca62ba5b0b3aac66bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821309f088a175c00dc0f4828334503d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/5756826a-6630-4dab-86e8-13c016161522.png?resizew=170)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2 . 椭圆
的离心率是
,点
是椭圆
上一点,过点
的动直线
与椭圆相交于
两点.
(1)求椭圆
的方程;
(2)求
面积的最大值;
(3)在平面直角坐标系
中,是否存在与点
不同的定点
,使
恒成立?存在,求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9b4a5f5334c153ddbefc763d8939ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(3)在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a97e38fffbca986dee7e2cb28bb794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
2023-09-17更新
|
1386次组卷
|
9卷引用:四川省仁寿第一中学校南校区2022-2023学年高二上学期期末理科数学试题
四川省仁寿第一中学校南校区2022-2023学年高二上学期期末理科数学试题(已下线)3.1.2 椭圆的简单的几何性质(AB分层训练)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)(已下线)高二上学期期中复习【第三章 圆锥曲线的方程】十二大题型归纳(拔尖篇)-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)专题突破卷23 圆锥曲线大题归类黑龙江省牡丹江市第一高级中学2023-2024学年高二上学期11月期中考试数学试题(已下线)上海市徐汇中学2023-2024学年高三上学期期中考试数学试题变式题16-21陕西省西安市长安区第一中学2024届高三上学期第五次教学质量检测数学(理)试题(已下线)第三章 圆锥曲线的方程(压轴题专练)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第一册)(已下线)专题06 椭圆的压轴题(6类题型+过关检测)-【常考压轴题】2023-2024学年高二数学上学期压轴题攻略(人教A版2019选择性必修第一册)
3 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede43d845a6cf871cf3a713ce878cd6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc795ef639a082f33874be729ee3ea91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374520dc0bfa282dbbd380fbcab525a2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆
,四点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7005eb7e461470dc3a1209060d9999.png)
中,恰有三点在椭圆
上.
(1)求椭圆
的方程;
(2)设直线
不经过
点,且与椭圆
相交于不同的两点
.若直线
与直线
的斜率之和为
,证明:直线
过一定点,并求此定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b0dadb875cccce870b69409a476606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7005eb7e461470dc3a1209060d9999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f2366e89f33b0a336ee7408fd60d286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3de68627f7f3d7f81b61bf743f311ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9019a986b3ba5fcefced99c566b5329c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-03-25更新
|
937次组卷
|
5卷引用:四川省眉山市青神中学校2023-2024学年高二上学期期末模拟数学试题
四川省眉山市青神中学校2023-2024学年高二上学期期末模拟数学试题重庆市主城区六校2021-2022学年高二上学期期末联考数学试题(已下线)高二上学期期末【压轴60题考点专练】(选修一+选修二)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)重庆市万州第二高级中学2023届高三上学期2月月考数学试题重庆市万州第二高级中学2023届高三下学期2月月考数学试题
5 . 已知函数
,
.
(1)讨论
的单调性;
(2)若
,且
在
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4efdf0d38178e9eef2d774857169da80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a02407ba11998fdbbc04702091cf04.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4d05f73b640b0a94376f797681c97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
6 . 若
,
恒成立,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da5236708be90891c0d0a90193f43403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 设函数
,其中
.
(1)当
时,求曲线
在点
处的切线方程;
(2)讨论函数
的单调性;
(3)当
,且
时证明不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40311f5136a51ebde0d34a270a8babe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6a9ffffc0c461881b427c543924cd.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e998bf9d6b42f36835bf95881d3813a.png)
您最近一年使用:0次
8 . 已知函数
,
,
.
(1)当
时,求函数
的单调区间;
(2)若函数
在区间
上的最小值是
,求
的值;
(3)设
是函数
图象上任意不同的两点,线段
的中点为
,直线
的斜率为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d663a70b6de99a502e73e230715457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71607511fdd4faa9e832345ceb2a817d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bc334305133ac2b4b8d21efeb3324c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811c6fbc93bafee69ded75316ef05122.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf40bad1cc89311930cce356672354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71860790153b570a8537c93326637b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae38a0dbe34b48e74059f56c31f48a70.png)
您最近一年使用:0次
2016-12-03更新
|
1415次组卷
|
2卷引用:2014-2015学年四川省眉山市高二下学期期末理科数学试卷