解题方法
1 . 阅读材料:
在平面直角坐标系中,若点
与定点
(或
的距离和它到定直线
(或
)的距离之比是常数
,则
,化简可得
,设
,则得到方程
,所以点
的轨迹是一个椭圆,这是从另一个角度给出了椭圆的定义.这里定点
是椭圆的一个焦点,直线
称为相应于焦点
的准线;定点
是椭圆的另一个焦点,直线
称为相应于焦点
的准线.
根据椭圆的这个定义,我们可以把到焦点的距离转化为到准线的距离.若点
在椭圆
上,
是椭圆的右焦点,椭圆的离心率
,则点
到准线
的距离为
,所以
,我们把这个公式称为椭圆的焦半径公式.
结合阅读材料回答下面的问题:
已知椭圆
的右焦点为
,点
是该椭圆上第一象限的点,且
轴,若直线
是椭圆右准线方程,点
到直线
的距离为8.
(1)求点
的坐标;
(2)若点
也在椭圆
上且
的重心为
,判断
是否能构成等差数列?如果能,求出该等差数列的公差,如果不能,说明理由.
在平面直角坐标系中,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875909171f6bd13552b1c9f5dfeba53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5bb9d2204b366da605e989c4153819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6fa6caa09b0ab11cc94a79bde7eccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5f5844db83d92feb468e828a1655b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aced4212f4fc0c0c9593ffec058985a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5b85e43f107575fdf78ad669562aa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a4f7da526a18d6d40b4c4fbd63f514a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5bb9d2204b366da605e989c4153819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875909171f6bd13552b1c9f5dfeba53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6fa6caa09b0ab11cc94a79bde7eccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e55590555905eb4f57889bbd16e39a.png)
根据椭圆的这个定义,我们可以把到焦点的距离转化为到准线的距离.若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d3ab81f15fc605429b3de9854f7a8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5bb9d2204b366da605e989c4153819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aab9c8e714f5d6cca8696ffeeda7565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30876440c1f1e76fa468e8479a254321.png)
结合阅读材料回答下面的问题:
已知椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b1da9046b4cb82135a4a1eaa528c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c0c9767659fd07c2e0b90ad7da571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23b488f961d9fde37feb7f5c497c0d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdce330c93b2b0768c6d76d77fdd2f0d.png)
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
:
,
,
.椭圆
内部的一点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea47c39b45a08749c34545c5ea63f39.png)
,过点
作直线
交椭圆于
,作直线
交椭圆于
.
、
是不同的两点.
(1)若椭圆
的离心率是
,求
的值;
(2)设
的面积是
,
的面积是
,若
,
时,求
的值;
(3)若点
,
满足
且
,则称点
在点
的左上方.求证:当
时,点
在点
的左上方.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42179166d21d549d0a67fc18eb23ddcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578faa3e92d60d4741a360898e46ce61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f213e991614465959aac77292c9bf09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea47c39b45a08749c34545c5ea63f39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a363df9127fb019f87ec53470c50dcc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ec05e3cec27677ded7b4aecaa62d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7bf58e5fea1189b33cf55d86335452f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5437d5aec66b82c4b24ecad191ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcbf4178c8ed5827e2c88636f82bf42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8395a33e03b51b63634c94da524bed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43f76fcb7712ce0d0ddb4104f7b7236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac013f1df37f2a894a4fdf0cda00a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce88593d30c07d9b882049ed9688b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3086ce1d297823309f83900cac1622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8138459c901da203d5a613736dd38150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2023-04-13更新
|
1618次组卷
|
8卷引用:上海师范大学附属中学2022-2023学年高二下学期期末数学试题
上海师范大学附属中学2022-2023学年高二下学期期末数学试题上海市奉贤区2023届高三二模数学试题(已下线)模块八 专题9 以解析几何为背景的压轴解答题(已下线)专题08 平面解析几何-学易金卷(已下线)重难点03圆锥曲线综合七种问题解题方法-【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)上海市静安区市北中学2024届高三上学期12月月考数学试题(已下线)专题15 圆锥曲线综合(已下线)重难点14 圆锥曲线必考压轴解答题全归类【十一大题型】(举一反三)(新高考专用)-2
名校
解题方法
3 . 我们把具有公共焦点、公共对称轴的两段圆锥曲线弧合成的封闭曲线称为“盾圆”.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/f275edec-5c87-41f4-a26e-86c1d0b1b57f.png?resizew=155)
(1)设椭圆
:
与双曲线
:
有相同的焦点
、
,M是椭圆
与双曲线
的公共点,且
的周长为6,求椭圆
的方程;
(2)如图,已知“盾圆”D的方程为
设“盾圆”D上的任意一点M到
的距离为
,M到直线
:
的距离为
,求证:
为定值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/f275edec-5c87-41f4-a26e-86c1d0b1b57f.png?resizew=155)
(1)设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747df5680bcf95e1a5aa7dfd8c4d3dab.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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)如图,已知“盾圆”D的方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1480de5b21903018b2b9bfaef4f16ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.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
2023-02-08更新
|
434次组卷
|
3卷引用:上海市华东师范大学第二附属中学2023-2024学年高二上学期数学期末考试试卷
(已下线)上海市华东师范大学第二附属中学2023-2024学年高二上学期数学期末考试试卷沪教版(2020) 选修第一册 高效课堂 第二章 每周一练(3)上海市华东师范大学第二附属中学2023-2024学年高二上学期期末考试数学试卷
名校
解题方法
4 . 给出如下的定义和定理:定义:若直线l与抛物线
有且仅有一个公共点P,且l与
的对称轴不平行,则称直线l与抛物线
相切,公共点P称为切点.定理:过抛物线
上一点
处的切线方程为
.完成下述问题:如图所示,设E,F是抛物线
上两点.过点E,F分别作抛物线
的两条切线
,
,直线
,
交于点C,点A,B分别在线段
,
的延长线上,且满足
,其中
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/50bdc7ba-e41c-47e0-a79a-a40547b1880f.png?resizew=195)
(1)若点E,F的纵坐标分别为
,
,用
,
和p表示点C的坐标.
(2)证明:直线
与抛物线
相切;
(3)设直线
与抛物线
相切于点G,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bae7891bf4fc3502b2e03f880998253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa877db8dc1b03f1581106dfd5211ac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.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/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e21f243dd613f3da6ed0fa0b666aad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/50bdc7ba-e41c-47e0-a79a-a40547b1880f.png?resizew=195)
(1)若点E,F的纵坐标分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7721f31efc94ed3e832f42610bc5369.png)
您最近一年使用:0次
2022-01-16更新
|
769次组卷
|
4卷引用: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)上海市复旦大学附属中学2021-2022学年高二上学期期末数学试题高考新题型-圆锥曲线(已下线)压轴题圆锥曲线新定义题(九省联考第19题模式)练
名校
解题方法
5 . 阿波罗尼斯是古希腊著名数学家,他的主要研究成果集中在他的代表作《圆锥曲线》一书中.阿波罗尼斯圆是他的研究成果之一,指的是已知动点
与两定点
,
的距离之比
,
是一个常数,那么动点
的轨迹就是阿波罗尼斯圆,圆心在直线
上.已知动点
的轨迹是阿波罗尼斯圆,其方程为
,定点分别为椭圆
的右焦点
与右顶点
,且椭圆
的离心率为
.
的标准方程;
(2)如图,过右焦点
斜率为
的直线
与椭圆
相交于
,
(点
在
轴上方),点
,
是椭圆
上异于
,
的两点,
平分
,
平分
.
①求
的取值范围;
②将点
、
、
看作一个阿波罗尼斯圆上的三点,若
外接圆的面积为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c216350e17d9c2923bbb5a88857d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343615457604ef10fe990dabd87de36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,过右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f90d13daca1f0d9f673d9b9b748499.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda40d4d62aa28f9e5f877bbea5ce511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1492f2abc84300b30768aec34952250e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963111aff6952322dfaca75ae069873c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf0d9011ae8816a8368189bbd4942e5.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bda2c1e94af9c9c4ea5b0ab763a2f37.png)
②将点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40631b29484bd9e39b6d26791dc05a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7de20fe4ddee31adafad5699fb84b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-07-12更新
|
5191次组卷
|
12卷引用:重庆市南开中学校2023届高三上学期期末数学试题
重庆市南开中学校2023届高三上学期期末数学试题重庆市巴蜀中学2020-2021学年高二下学期期末数学试题安徽省合肥一六八中学等学校2024届高三上学期名校期末联合测试数学试题安徽“耀正优+”2024届高三名校上学期期末测试数学试题(已下线)专题12 圆锥曲线的方程的压轴题(二)-【尖子生专用】2021-2022学年高二数学考点培优训练(人教A版2019选择性必修第一册)(已下线)第3章 圆锥曲线与方程 单元综合检测(能力提升)(单元培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)(已下线)专题08 《圆锥曲线与方程》中的解答题压轴题(2)-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)专题1 阿波罗尼斯圆及其应用 微点4 阿波罗尼斯圆与圆锥曲线(已下线)圆锥曲线新定义(已下线)信息必刷卷01(江苏专用,2024新题型)河南省信阳市新县高级中学2024届高三考前第三次适应性考试数学试题河南省郑州市第一中学2024届高三下学期高考考前全真模拟考试数学试题
6 . 焦点为
的抛物线
与圆
交于
两点,其中
点横坐标为
,方程
的曲线记为
,
是曲线
上一动点.
在抛物线上且满足
,求直线
的斜率;
(2)
是
轴上一定点. 若动点
在
上满足
的范围内运动时,
恒成立,求
的取值范围;
(3)
是曲线
上另一动点,且满足
,若
的面积为4 ,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8a3bffe545af2299cf999d44767206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd64825e3ff912ad3cae60e6b6dca488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e4e4c7a79d9d3cdb9ac5949d53e33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c97938d07092ac2803ff89a47e5b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcec04cff66ddf1c021d73d6c681ebb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360d86f0ec1c4d9d0dfc06a9064db0b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388f9a492789afe93cd09bced064e06e.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/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff8450b7dd0330a9686594a14baa9f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0b68e4289ee07e6a7d1dbea801aecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a52c17a41524894bb6932b11181e6e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11e29303195c563855aee4c14cbcb9bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2021-05-05更新
|
708次组卷
|
7卷引用:江西省宜春市丰城市第九中学2022-2023学年高二重点班(28、29班)上学期期末考试数学试题
江西省宜春市丰城市第九中学2022-2023学年高二重点班(28、29班)上学期期末考试数学试题上海市杨浦区2021届高三二模数学试题(已下线)押第20题 解析几何-备战2021年高考数学(文)临考题号押题(全国卷1)(已下线)押第20题 解析几何-备战2021年高考数学(理)临考题号押题(全国卷1)上海市嘉定区第二中学2022届高三下学期开学考试数学试题(已下线)压轴题圆锥曲线新定义题(九省联考第19题模式)练(已下线)江苏省南通市2024届高三第二次调研测试数学试题变式题 16-19
名校
解题方法
7 . 已知椭圆
的右焦点为F(1,0),且点
在椭圆C上.
(1)求椭圆C的标准方程;
(2)过椭圆
上异于其顶点的任意一点Q作圆
的两条切线,切点分别为M,N(M,N不在坐标轴上),若直线MN在x轴,y轴上的截距分别为m,n,证明:
为定值;
(3)若
是椭圆
上不同的两点,
轴,圆E过
且椭圆
上任意一点都不在圆E内,则称圆E为该椭圆的一个内切圆.试问:椭圆
是否存在过左焦点
的内切圆?若存在,求出圆心E的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd72321801f7ce55ed0330289dd7c577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dfb290b1a84f670549554a0c988593.png)
(1)求椭圆C的标准方程;
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597b9723e2ab9eab0ca81152fad8d0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda7bde4ecc7413edffcff08e2d62a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81717125fadcf1b65daddd2f216731c8.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5425108c557f0f21474c045334f97d9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651beaf4cdd156a0877cc21e1395c0ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff215035efa191754cda9af198641e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5425108c557f0f21474c045334f97d9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
您最近一年使用:0次
2020-11-15更新
|
2289次组卷
|
5卷引用:上海市宜川中学2022-2023学年高二下学期数学期末模拟测试卷2
上海市宜川中学2022-2023学年高二下学期数学期末模拟测试卷2辽宁省部分中学2021-2022学年高三下学期期末数学试题上海市南洋模范中学2021届高三上学期期中数学试题(已下线)专题24 圆锥曲线中的存在性、探索性问题 微点1 圆锥曲线中的存在性问题(已下线)圆锥曲线新定义