名校
解题方法
1 . 已知椭圆
(
,
)的左、右焦点分别为
,
,过
且与
轴垂直的直线与椭圆
交于
,
两点,
的面积为
,点
为椭圆
的下顶点,
.
(1)求椭圆
的标准方程;
(2)经过抛物线
的焦点
的直线
交椭圆
于
,
两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ab755cb90cedf18b30c2b5031da9fa.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)经过抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06974072b751a499a172e3755936e564.png)
您最近一年使用:0次
2021-06-26更新
|
466次组卷
|
5卷引用:陕西省汉中市西乡县第一中学2023届高三下学期第六次考试理科数学试题
陕西省汉中市西乡县第一中学2023届高三下学期第六次考试理科数学试题四川省遂宁市2021届高三三三模数学(理)试题四川省内江市第六中学2021-2022学年高三上学期第一次月考数学(文科)试题四川省内江市第六中学2021-2022学年高三上学期第一次月考数学(理科)试题(已下线)专题21 圆锥曲线综合-备战2022年高考数学(理)母题题源解密(全国乙卷)
2 . 已知过点
的直线
与抛物线
交于
、
两点,且
,其中
为坐标原点.
(1)求
的值;
(2)当
最小时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c4ce2e66bda1a5acc1e374016432b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebac01772fba6b0eb3fbf14472a7f11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf809257d844b4806c6fabe79c961fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-06-20更新
|
796次组卷
|
9卷引用:陕西省西安市高新第一中学2021-2022学年高三上学期第一次模拟考试文科数学试题
陕西省西安市高新第一中学2021-2022学年高三上学期第一次模拟考试文科数学试题上海市复旦大学附属中学2021届高三高考考前模拟训练数学试题(已下线)专题21 圆锥曲线综合-备战2022年高考数学(理)母题题源解密(全国乙卷)新疆乌鲁木齐市第101中学2022-2023学年高三下学期3月月考数学试题(文科)1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(理科)试题(十七)(已下线)3.3 抛物线的标准方程-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) (已下线)3.3抛物线C卷3.3.1 抛物线的标准方程(同步练习提高篇)北师大版(2019) 选修第一册 数学奇书 第二章 圆锥曲线 §3 抛物线 3.2 抛物线的简单几何性质 第1课时 抛物线的简单几何性质
名校
解题方法
3 . 已知椭圆
的一个焦点与抛物线
的焦点重合,且直线
与圆
相切.
(1)求椭圆
的方程;
(2)设斜率为
且不过原点的直线
与椭圆
相交于
、
两点,
为坐标原点,直线
的斜率分别为
,若
成等比数列,推断
是否为定值﹖若是,求出此定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4856428c4f87eada4e504fce8cc91d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac89d45e79b10741d93a9443c70adde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f85a6bcbffa8befeb967bb527cd43a4.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fec6efa333e34c57722ca8dcb8fbf9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a0d9a2f14f7e789892487d6585804a.png)
您最近一年使用:0次
2021-01-25更新
|
297次组卷
|
5卷引用:陕西省安康中学2022-2023学年高三上学期第一次检测性考试理科数学试题
4 . 已知抛物线
:
的焦点为
,过点
作圆
:
的两条切线
,
且
.
(1)求抛物线
的方程;
(2)过点
作直线
与
交于
,
两点,若
,
到直线
的距离分别为
,
.求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4b755ff7bf8eba3c7bb8d14fd3eec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4103a3b7ef474b684bc5a243c5c59d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a4b32d388558eb9a9e4f0f2dd57c09.png)
您最近一年使用:0次
2020-12-20更新
|
291次组卷
|
5卷引用:陕西省2020-2021学年高三上学期教学质量检测测评卷一文科数学试题
陕西省2020-2021学年高三上学期教学质量检测测评卷一文科数学试题陕西省2020-2021学年高三上学期教学质量检测测评卷一理科数学试题(已下线)专题25 抛物线(解答题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题27 抛物线(解答题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题27 抛物线(解答题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)
5 . 如图,过抛物线
的焦点
的直线交抛物线
于不同两点
,
为拋物线上任意一点(与
不重合),直线
分别交抛物线的准线
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/2c5b93a5-cc61-4227-bda9-b8bfec96c650.png?resizew=179)
(Ⅰ)写出焦点
的坐标和准线
的方程;
(Ⅱ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1ba86ffc6e5542b62319848c14acaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/2c5b93a5-cc61-4227-bda9-b8bfec96c650.png?resizew=179)
(Ⅰ)写出焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0451f9e4f4db57e9ae978cdc27325698.png)
您最近一年使用:0次
2020-01-31更新
|
354次组卷
|
2卷引用:2020届陕西省咸阳市高三上学期期末考试数学(理)试题
名校
解题方法
6 . 椭圆
〔
>b>0〕与抛物线
有共同的焦点F,且两曲线在第一象限的交点为M,满足
.
(1)求椭圆的方程;
(2)过点
,斜率为
的直线
与椭圆交于
两点,设
,假设
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c367a1849949fd750962f3d6b6ce49d.png)
(1)求椭圆的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22840186db0afc0e2b2e8915ce79b998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f2d7479433c7111ed66a7858b99139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c4f41e4095d1be9d786e555e629373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
13-14高三上·陕西·阶段练习
名校
解题方法
7 . 已知椭圆C的中心在坐标原点,短轴长为4,且有一个焦点与抛物线
的焦点重合.
(Ⅰ)求椭圆C的方程;
(Ⅱ)已知经过定点M(2,0)且斜率不为0的直线
交椭圆C于A、B两点,试问在x轴上是否另存在一个定点P使得
始终平分
?若存在,求出
点坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a4799958085429d68c82b0ab61d0ad7.png)
(Ⅰ)求椭圆C的方程;
(Ⅱ)已知经过定点M(2,0)且斜率不为0的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ac852180627c6c38ee0dd36f238ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2019-01-30更新
|
1144次组卷
|
3卷引用:2014届陕西西工大附中高三上学期第一次适应性训练理数学卷