名校
解题方法
1 . 已知椭圆
的右顶点为A,左焦点为F,过点F作斜率不为零的直线l交椭圆于
两点,连接
,
分别交直线
于
两点,过点F且垂直于
的直线交直线
于点R.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/66d2811b-202b-4abb-b9e7-939080908ed3.png?resizew=216)
(1)求证:点R为线段
的中点;
(2)记
,
,
的面积分别为
,
,
,试探究:是否存在实数
使得
?若存在,请求出实数
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051be09b4e835cf68f624541a843018d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051be09b4e835cf68f624541a843018d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/66d2811b-202b-4abb-b9e7-939080908ed3.png?resizew=216)
(1)求证:点R为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d7bc44c23548b83970d3422817be1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62d1f44c3ec83f280aa3b76d17b152b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbdbc43aa8c6cc90d93a6d8010ef07f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9704598bcc28d88271fee9b2b354254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-03-09更新
|
2262次组卷
|
5卷引用:湖北省七市(州)2023届高三下学期3月联合统一调研测试数学试题
名校
解题方法
2 . 设O是坐标原点,以
为焦点的椭圆
的长轴长为
,以
为直径的圆和C恰好有两个交点,
(1)求C的方程;
(2)P是C外的一点,设其坐标为
,过P的直线
均与C相切,且的斜率
之积为
,记u为
的最小值,求u的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92399b40cb5913b0d3e2d5d2f540c76d.png)
(1)求C的方程;
(2)P是C外的一点,设其坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24c904b72b2c2c971e4d5a91d9c34b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598b150b60b7e443f7f9a214824973b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186b089ab7f74d2b92ee9b556e5e3ca8.png)
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2021-07-15更新
|
954次组卷
|
10卷引用:湖北省鄂东南省级示范高中教育教学改革联盟学校2021-2022学年高二上学期期中联考数学试题
湖北省鄂东南省级示范高中教育教学改革联盟学校2021-2022学年高二上学期期中联考数学试题广东省深圳市2021届高三一模数学试题(已下线)专题1.8 圆锥曲线-椭圆-2021年高考数学解答题挑战满分专项训练(新高考地区专用)(已下线)黄金卷18-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(山东高考专用)福建省厦门一中2020-2021学年高二下学期期中考试数学试题(已下线)解密17 椭圆(分层训练)-【高频考点解密】2021年高考数学(文)二轮复习讲义+分层训练(已下线)专题14 圆锥曲线的综合问题 - 2021-2022高二上学期数学新教材配套提升训练(人教A版2019选择性必修第一册)浙江省杭州市学军中学2021-2022学年高二上学期期中数学试题(已下线)专题35 双切线问题的探究-1福建省厦门第一中学2020-2021学年高二下学期期中数学试题
名校
3 . 已知点
在椭圆
上,椭圆的右焦点
,直线
过椭圆的右顶点
,与椭圆交于另一点
,与
轴交于点
.
(1)求椭圆
的方程;
(2)若
为弦
的中点,是否存在定点
,使得
恒成立?若存在,求出
点的坐标,若不存在,请说明理由;
(3)若
,交椭圆
于点
,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857647969d40b1d9ba410554202e7989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b976243dd944629217f35588e5a7e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0297c11050f2e39f82bb2cdf810d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcea51bcfe5451587b1aa95591f9761.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/6a2b45409140d8dd277db53731a1aab0.png)
您最近一年使用:0次
2019-12-12更新
|
561次组卷
|
3卷引用:湖北省鄂东南省级示范高中教育教学改革联盟学校2019-2020学年高二上学期期中联考数学试题
名校
解题方法
4 . 已知圆O;x2+y2=4,F1(-1,0),F2(1,0),点D圆O上一动点,2
=
,点C在直线EF1上,且
=0,记点C的轨迹为曲线W.
(1)求曲线W的方程;
(2)已知N(4,0),过点N作直线l与曲线W交于A,B不同两点,线段AB的中垂线为l',线段AB的中点为Q点,记l'与y轴的交点为M,求|MQ|的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f8eaacec81d6c26bed3902e02aa9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d0c2b85aa84ea0863eadbfd366678a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3374a42967a2f404f43788acb00721b.png)
(1)求曲线W的方程;
(2)已知N(4,0),过点N作直线l与曲线W交于A,B不同两点,线段AB的中垂线为l',线段AB的中点为Q点,记l'与y轴的交点为M,求|MQ|的取值范围.
您最近一年使用:0次
2019-05-07更新
|
918次组卷
|
4卷引用:【市级联考】湖北省钟祥市2019届高三高考第一次模拟考试理科数学试题
名校
5 . 已知
为坐标原点,椭圆
:
的左、右焦点分别为
,
,右顶点为
,上顶点为
,若
,
,
成等比数列,椭圆
上的点到焦点
的距离的最大值为
.
求椭圆
的标准方程;
过该椭圆的右焦点作两条互相垂直的弦
与
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81bbfb3029de7228939db48d325c305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96722ac4606bc95149cf6fcca3b3e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526253844494fed86429e1390505e0db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e3d2d5bb85f2a81c8ac15231ea8a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad9d33ef9bea1a5ac7e235460568177.png)
您最近一年使用:0次
2019-02-14更新
|
973次组卷
|
2卷引用:【市级联考】湖北省黄冈市2019届高三上学期元月调研理科数学试题
真题
名校
6 . 已知m>1,直线
,椭圆
,
分别为椭圆
的左、右焦点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/36b5c5ba-f999-4b88-acf8-5dfe078d6827.png?resizew=202)
(Ⅰ)当直线
过右焦点
时,求直线
的方程;
(Ⅱ)设直线
与椭圆
交于
两点,
,
的重心分别为
.若原点
在以线段,
为直径的圆内,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d4db75c65aa0f5747a990300b550e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8703b7df929607641bef177d902c77a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef418612694bad6623eed90cafc9d23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/36b5c5ba-f999-4b88-acf8-5dfe078d6827.png?resizew=202)
(Ⅰ)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅱ)设直线
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47444b5fbc4252516d54263062e47c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0f067a2a348ceb24a408f82992eab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-01-30更新
|
2825次组卷
|
23卷引用:2015-2016学年湖北省黄石市有色一中高二10月月考文科数学试卷
2015-2016学年湖北省黄石市有色一中高二10月月考文科数学试卷2016届湖北襄阳四中高三六月全真模拟一数学(理)试卷武汉市蔡甸区汉阳一中2017届高三第五次模拟考试理数试卷2010年普通高等学校招生全国统一考试(浙江卷)理科数学(已下线)2010年高考试题分项版理科数学之专题七 直线与圆的方程(已下线)2010年高考试题分项版理科数学之专题八 圆锥曲线(已下线)2011届宁夏银川二中高三第一次模拟考试数学理卷(已下线)2011-2012学年上海市重点中学高二上学期期末考试数学(已下线)2012届山东省实验中学高三第四次诊断考试文科数学试卷(已下线)2012届山东省菏泽市重点高中高三5月高考冲刺题理科数学试卷(已下线)2012届山东省菏泽学院附中高三5月高考冲刺理科数学试卷(已下线)2012-2013学年河南省安阳一中高二上学期期末考试文科数学试卷2015-2016学年吉林大学附中高二上学期期末文科数学试卷贵州省兴义市第八中学2017-2018学年高二上学期期中考试数学(理)试题上海市大同中学2018届高三三模考试数学试题【校级联考】福建省永春一中、培元中学、季延中学、石光中学四校2019届高三第二次联合考试数学(理)试题(已下线)上海市华东师范大学第二附属中学2018-2019学年高二上学期12月月考数学试题内蒙古鄂尔多斯市第一中学2019-2020学年高三第四次调研考试数学(理)试题上海市格致中学2016-2017学年高三上学期第二次月考数学试题(已下线)专题9.9 圆锥曲线的综合问题(讲)【理】-《2020年高考一轮复习讲练测》上海市格致中学2017届高三上学期12月月考数学试题贵州省铜仁市思南中学2020-2021学年高二上学期期末考试数学(理)试题(已下线)专题13 解析几何中的范围、最值和探索性问题 第一篇 热点、难点突破篇(练)-2021年高考数学二轮复习讲练测(浙江专用)
12-13高三上·湖北省直辖县级单位·期末
名校
7 . 已知椭圆
经过点
离心率
.
(Ⅰ)求椭圆的方程;
(Ⅱ)经过椭圆左焦点
的直线(不经过点
且不与
轴重合)与椭圆交于
两点,与直线
:
交于点
,记直线
的斜率分别为
.则是否存在常数
,使得向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5187bb69e522ab69664a25b5e06664.png)
共线?若存在求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/867d5d126c90cfc69ece58e434ef8ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58d1db7d9623f759dbd46ee32af43f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a2c870f59c2ece84e66a175ac35aff.png)
(Ⅰ)求椭圆的方程;
(Ⅱ)经过椭圆左焦点
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166a8e1bcb93423697696e2ba0409fbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb65545b3b22bf1dfdd31875703af51d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5187bb69e522ab69664a25b5e06664.png)
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2016-12-01更新
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6卷引用:2012届湖北省天门、仙桃、潜江中学高三上学期期末考试理科数学试卷