解题方法
1 . 已知椭圆
的左顶点为
,上、下顶点分别为
,
,直线
的方程为
.
(1)求椭圆
的方程及离心率;
(2)
是椭圆上一点,且在第一象限内,
是点
关于
轴的对称点.过
作垂直于
轴的直线交直线
于点
,再过
作垂直于
轴的直线交直线
于点
.求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a69480dd19a3d40afc4229fff86337.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2451835b9ad821bc17a317bc0189a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57debff8a4c250694ef00deae0e61662.png)
您最近一年使用:0次
2023-05-05更新
|
1414次组卷
|
3卷引用:北京市海淀区2023届高三二模数学试题
解题方法
2 . 已知椭圆
过
,
两点.
(1)求椭圆W的方程;
(2)直线
与x轴交于点
,过点M作不垂直于坐标轴且与
不重合的直线l,l与椭圆W交于C,D两点,直线
,
分别交直线
于P,Q两点,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014b99f5c93a4ce8cd6251c12c1d1b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32366143230ca122894a4bada7c7b96d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879472805d78656a200ef4ae2ca1ac77.png)
(1)求椭圆W的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be13ea579d4b0048acba77db6b6ac4f.png)
您最近一年使用:0次
2023-04-05更新
|
487次组卷
|
2卷引用:北京市玉渊潭中学2023届高三下学期开学摸底数学试题
3 . 已知函数
.
(1)求
的单调区间;
(2)若
对
恒成立,求a的取值范围;
(3)证明:若
在区间
上存在唯一零点
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038e9d57cedce08cfd8f84e8b8e8f51a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
(3)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db59df375de5b16c75c71675f743b15d.png)
您最近一年使用:0次
2023-03-27更新
|
2139次组卷
|
9卷引用:北京市朝阳区2023届高三一模数学试题
名校
解题方法
4 . 已知椭圆
的长轴长为
,且过点
.
(1)求C的方程和离心率;
(2)过点
与作直线l交椭圆C于点D、E(不与点A重合).
是否为定值?若是,求出该定值,若不是,求其取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
(1)求C的方程和离心率;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03a9e0691a845ad6100074b5c06946fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e7106619c08f2bcc1d21f846e8a0de.png)
您最近一年使用:0次
2023-03-07更新
|
647次组卷
|
2卷引用:北京市人大附2023届高三下学期开学考数学试题
5 . 已知函数
.
(1)若曲线
与直线
相切,求实数a的值
(2)若函数
有且只有1个零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea400e6c5e28322f5b5c8f8522e1da8.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2023-03-07更新
|
596次组卷
|
2卷引用:北京市人大附2023届高三下学期开学考数学试题
名校
解题方法
6 . 已知
分别为定义域为R的偶函数和奇函数,且
,若关于x的不等式
在
上恒成立,则实数a的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a474219fa05c6aade5e1773a18663b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a20ce01ca9cf0672c7d73da3f424a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c68f21f5be41b1e02d21042c1f8d55.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-03-07更新
|
812次组卷
|
2卷引用:北京市人大附2023届高三下学期开学考数学试题
7 . 已知函数
,
为函数
的导函数.
(1)求
的图象在
处的切线方程;
(2)求函数
的零点个数;
(3)若函数
在区间
上有最小值,其中a为正整数,求a的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d451d79f4034468f2cbd192a22bfd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0142b68b730299ea4e9dd70b6ac340.png)
您最近一年使用:0次
2023-02-19更新
|
834次组卷
|
3卷引用:北京大兴区教师进修学校2023届高三下学期开学检测数学试题
名校
8 . 已知函数
.
(1)求
的单调区间和极值;
(2)若
是函数
的极值点.
(ⅰ)证明:
;
(ⅱ)讨论
在区间
上的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d286f10c2662c15a7e6b45394d20f56c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c37b0801fa2c74864207e7626fd6b9.png)
(ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3819cdc9dd03503909a0f44060e3e2a0.png)
(ⅱ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28933f93d4952657848a1564f37bd6e5.png)
您最近一年使用:0次
2023-02-17更新
|
681次组卷
|
4卷引用:北京市海淀区首都师范大学附属中学2023-2024学年高三下学期开学练习数学试题
北京市海淀区首都师范大学附属中学2023-2024学年高三下学期开学练习数学试题天津市南开区2022-2023学年高三上学期12月阶段性质量监测(二)数学试题(已下线)北京市丰台区2023届高三下学期3月一模数学试题变式题16-21(已下线)专题3 导数与函数的零点(方程的根)【练】
名校
9 . 设函数
.
(1)若
,求函数
的单调区间;
(2)若函数
在区间
上是减函数,求实数a的取值范围;
(3)过坐标原点O作曲线
的切线,证明:切线有且仅有一条,且求出切点的横坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c2c76362d908309c59339d7999b643.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0109d06b8be2e402b5ffbb0aeb501009.png)
(3)过坐标原点O作曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
2023-02-14更新
|
1148次组卷
|
3卷引用:北京市海淀区中国人民大学附属中学2023届高三下学期开学摸底练习数学试题
名校
10 . 已知函数
.
(1)求
的单调区间;
(2)若
对
恒成立,求a的取值范围;
(3)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9961c60acd6de581544d4a806e9868fb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b3b5ece994e9188e64486aadda333e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae3222f2ca8e042c627435435ae9119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
您最近一年使用:0次
2023-01-06更新
|
1422次组卷
|
8卷引用:北京市朝阳区2023届高三上学期数学期末试题