1 . 如图,P为椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0ac188b55d6377c0ab00a28f3b9296.png)
上的动点,过P作椭圆
的切线交圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3780231ff0af68a65a3d740a2c858b26.png)
于M,N,过M,N作
切线交于Q,则Q的轨迹方程为_______________ ;
的最大值为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0ac188b55d6377c0ab00a28f3b9296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6992d4a7cfa2348894f7c991ed6171c1.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/de5896a5-8ca6-48a2-8ae5-bc88e615bf8e.png?resizew=219)
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2 . 已知椭圆
,直线
过椭圆C的左焦点F且交椭圆于A,
两点,线段AB的垂直平分线交x轴于M点,则
的值为___________ ;
取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087495ff07f70d0685ef225d31947278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38190077c30a3c97a40a8689eb1dc385.png)
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解题方法
3 . 已知椭圆
的左、右焦点分别为
,
,点
在椭圆
上运动,直线
,
与椭圆
的另一个交点分别为
,
,且当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__ ,若
,
,则
的最小值为 __ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069ffc1e3936d254303d588e1a70a3aa.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
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4 . 如图,
为椭圆
上的动点,过
作椭圆
的切线交圆
于
、
,过
、
作
切线交于
,则
的轨迹方程为___________ ;
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8597d47a42b784b32ae9060bd1c3cd45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/de475975-3709-47a1-a138-07fb016e3c2f.png?resizew=136)
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5 . 设
是椭圆
的两个焦点,P为椭圆上任意一点,当
取最大值时的余弦值为
.则(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b9afe6e2307c6a8b0097a6c45b227c.png)
________ ;(2)若椭圆上存在一点A,使
(O为坐标原点),且
,则
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948261c41cc1509f023761d880c75582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f9b5af0d1e0cf7dd6159358270f987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b9afe6e2307c6a8b0097a6c45b227c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce5765f3f1b9e9f682303121e3c8163a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe56d7b88a815eed5587aa7bbdbe0b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解题方法
6 . 已知椭圆
,右焦点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ ,若
、
为该椭圆的左右顶点,
、
为椭圆上关于
对称的两个动点,已知直线
斜率的取值范围是
,则直线
斜率的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d279488acb96725340f5c47d609f7a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
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解题方法
7 . 已知椭圆
的左、右焦点分别为
,
,点
为椭圆
上的动点,点
,点
.在点
的运动过程中,
的面积的最大值为
且满足
成立的点
有且只有
个.当点
在
轴的下方运动时,记
的外接圆半径为
,内切圆半径为
,则
的最大值为________ ,
的外接圆面积的取值范围为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94953cf5a25d8337393232c485dcf150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a388a8e291afb1c37d0faee69dee2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2021-02-04更新
|
980次组卷
|
4卷引用:湖北省(B4联考新高考调研)部分省级示范性重点中学2020-2021学年高三上学期统一质量检测数学试题
湖北省(B4联考新高考调研)部分省级示范性重点中学2020-2021学年高三上学期统一质量检测数学试题(已下线)专题21 椭圆、双曲线、抛物线的几何性质的应用(练)-2021年高三数学二轮复习讲练测(新高考版)(已下线)专题25 椭圆、双曲线、抛物线的几何性质的应用(练)-2021年高三数学二轮复习讲练测(文理通用)广东省广州市四校联考2022-2023学年高二上学期期中数学试题(B卷)
8 . 已知点
在椭圆
上运动,则
的最大值是_________ ;点
到直线
:
的最小距离是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4166e4e05bfd3ac3e8b739e0541c43ab.png)
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2020-12-16更新
|
348次组卷
|
3卷引用:甘肃省兰州市第一中学2020-2021学年高二上学期期末考试数学(理)试题
名校
解题方法
9 . 在平面直角坐标系
中,点
的坐标为
,且
,动点
与
连线的斜率之积为
,则动点
的轨迹方程为______________ ,
面积的取值范围是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
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2020-11-30更新
|
536次组卷
|
7卷引用:专题11 圆锥曲线的几何性质问题 第一篇 热点、难点突破篇(讲)-2021年高考数学二轮复习讲练测(浙江专用)
(已下线)专题11 圆锥曲线的几何性质问题 第一篇 热点、难点突破篇(讲)-2021年高考数学二轮复习讲练测(浙江专用)(已下线)专题18 椭圆(客观题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题20 椭圆(客观题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题19 椭圆(客观题)-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)浙江省杭州高级中学2020-2021学年高三上学期11月期中数学试题(已下线)【新东方】杭州新东方高中数学试卷397(已下线)【新东方】杭州新东方数学试卷414
解题方法
10 . 设椭圆
的右焦点为
,则
的坐标是______ ;若
为椭圆的右顶点,
为椭圆上的动点.则当
最小时,
点的横坐标是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8aaed82aa82565abe252a3a7ae7a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2020-09-04更新
|
1550次组卷
|
7卷引用:黄金卷16-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)
(已下线)黄金卷16-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)(已下线)专题18 椭圆(客观题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题20 椭圆(客观题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题19 椭圆(客观题)-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)(已下线)重组卷01-冲刺2021年高考数学之精选真题+模拟重组卷(新高考地区专用)2020年浙江省新高考名校交流模拟卷数学试题(四)(已下线)专题23 圆锥曲线中的最值、范围问题 微点3 圆锥曲线中的最值、范围问题综合训练