1 . 已知椭圆
离心率为
,椭圆M与y轴交于A,B两点(A在下方),且
过点
直线l与椭圆M交于C,D两点(不与A重合).
(Ⅰ)求椭圆M的方程;
(Ⅱ)证明:直线
的斜率与直线
的斜率乘积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cf6cca367ce2afd96d7d951f9587e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78dc1c1ee60be772884f9d69804f56da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dbbb76c7a42b124d474b652abdbadde.png)
(Ⅰ)求椭圆M的方程;
(Ⅱ)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2020-09-04更新
|
1812次组卷
|
6卷引用:北京市昌平区2020届高三第二次统一练习(二模)数学试题
北京市昌平区2020届高三第二次统一练习(二模)数学试题北京市中关村中学2022届高三下学期开学测试数学试题湖北省黄石市第一中学2019-2020学年高二下学期期末数学试题(已下线)【新教材精创】2.8+直线与圆锥曲线的位置关系(2)-A基础练-人教B版高中数学选择性必修第一册(已下线)重难点5 解析几何-2021年高考数学【热点·重点·难点】专练(山东专用)广东省雷州市第二中学2020-2021学年高二上学期期中数学试题
解题方法
2 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689e1011525feb927bef1c8c81961c0b.png)
(1)求椭圆
的标准方程和离心率;
(2)是否存在过点
的直线
与椭圆
相交于
,
两点,且满足
.若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689e1011525feb927bef1c8c81961c0b.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)是否存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e298293515d3c5d8343b668fe8541d.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/c7cd0afa4f2f0ed37fd908afe43f2fe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-05-18更新
|
768次组卷
|
4卷引用:北京市怀柔区2019-2020学年高二上学期期末考试数学试题
北京市怀柔区2019-2020学年高二上学期期末考试数学试题北京市2020届高考数学预测卷(已下线)专题20 圆锥曲线综合-2020年高考数学母题题源解密(北京专版)宁夏固原市第五中学2021届高三年级期末考试数学(理)试题
名校
解题方法
3 . 已知椭圆
的离心率为
,过椭圆右焦点
的直线
与椭圆交于
,
两点,当直线
与
轴垂直时,
.
(1)求椭圆
的标准方程;
(2)当直线
与
轴不垂直时,在
轴上是否存在一点
(异于点
),使
轴上任意点到直线
,
的距离均相等?若存在,求
点坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5343910f9d9bf80726643a4618ea15.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ccb528bcbb29b4df4742d723608e95.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2020-04-14更新
|
587次组卷
|
6卷引用:2020届北京市朝阳区六校高三四月联考数学(B卷)试题
名校
解题方法
4 . 已知椭圆的方程为
(
),其离心率
,
分别为椭圆的左、右焦点,
为椭圆上的点(
不在
轴上),
周长为6.过椭圆右焦点
的直线
与椭圆交于
两点,
为坐标原点,
面积为
.
(1)求椭圆的标准方程:
(2)求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/0a9df1061c3ba5151ba2f7359acaf356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df40ee2dc4b40e0f23b98aade5aba70d.png)
(1)求椭圆的标准方程:
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
您最近一年使用:0次
5 . 已知
是椭圆
上的两点.
(1)求椭圆
的离心率;
(2)已知直线
过点
,且与椭圆
交于另一点
(不同于点
),若以
为直径的圆经过点
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d175f73f9fa69954f2298072c303775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f729f918900b215c9721da1b44efdc.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-02-01更新
|
219次组卷
|
2卷引用:北京海淀区教师进修学校2023届高三上学期12月月考数学试题
名校
6 . 已知椭圆
的右焦点为
,过点
且斜率为
的直线
与椭圆
交于
两点,线段
的中点为
为坐标原点.
(1)证明:点
在
轴的右侧;
(2)设线段
的垂直平分线与
轴、
轴分别相交于点
.若
与
的面积相等,求直线
的斜率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2261c662b3e3f6bccc8ddeb5a61b1175.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/2799abb64fd7bfce9dfa7228aa460564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811ddb62dded70f279710ae6c0fdbb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8255e035cfd3c2e84f10b236b6fd97.png)
(1)证明:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f43dd27150098f6dfabfdac92da27e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac83f9aad1493bac1fdd2d240cbfa10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-01-13更新
|
620次组卷
|
2卷引用:北京市西城区2019-2020学年高三上学期期末数学试题
名校
7 . 已知椭圆
过点
.
(Ⅰ)求椭圆
的方程,并求其离心率;
(Ⅱ)过点
作
轴的垂线
,设点
为第四象限内一点且在椭圆
上(点
不在直线
上),直线
关于
的对称直线
与椭圆交于另一点
.设
为坐标原点,判断直线
与直线
的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c228de3980a482944511f1138333970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)过点
![](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/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
您最近一年使用:0次
2020-01-10更新
|
947次组卷
|
11卷引用:【区级联考】北京市东城区2019届高三第一学期期末数学(理)试题
【区级联考】北京市东城区2019届高三第一学期期末数学(理)试题北京市石景山区2019-2020学年高三上学期期末考试数学试题【市级联考】湖北省十堰市2019届高三模拟试题文科数学试题四川省成都市棠湖中学2018-2019学年高二下学期期末考试数学(文)试题四川省成都市成都外国语学校2019-2020学年高三期中数学(理)试题四川省成都市成都外国语学校2019-2020学年高三上学期期中数学(文)试题(已下线)2020届高三12月第01期(考点08)(理科)-《新题速递·数学》天津市河北区2018-2019学年度高三年级总复习质量检测(二)数学(理)试题2020届黑龙江省实验中学高三下学期开学考试数学(文)试题(已下线)专题18 圆锥曲线(解答题)-2020年高考数学母题题源解密(天津专版)四川省内江市2021届高三第三次模拟数学(文)试题
名校
解题方法
8 . 已知椭圆C:
的离心率为
,长轴长为
.
Ⅰ
求椭圆C的方程;
Ⅱ
斜率为1的直线l过椭圆C的右焦点F,交椭圆C于A,B两点,设M为椭圆C上任意一点,且
,其中O为原点
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc860cece09bffcc2593dc7b11aee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb57575dea540c569265de158429425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd72b6a249a09c977c55226031195466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bbb391bcb279073a82e886896e47eea.png)
您最近一年使用:0次
2019-03-08更新
|
1407次组卷
|
3卷引用:【区级联考】北京市顺义区2019届高三期末文科数学试题
名校
9 . 已知椭圆
的左、右焦点分别为
,
,点
在椭圆
上.
(
)求椭圆
的标准方程.
(
)是否存在斜率为
的直线
,使得当直线
与椭圆
有两个不同交点
,
时,能在直线
上找到一点
,在椭圆
上找到一点
,满足
?若存在,求出直线
的方程;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9d55173f26afdf0e37462b556a605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad492d5033448d419df9c9b75a71894e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
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您最近一年使用:0次
2018-07-02更新
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1039次组卷
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10卷引用:【全国百强校】北京东城北京二中2018届高三上学期期中考试数学(理)试题
【全国百强校】北京东城北京二中2018届高三上学期期中考试数学(理)试题2017届湖北黄石市高三9月调研数学(文)试卷2017届湖南师大附中高三上月考三数学(文)试卷2017届山西省三区八校高三第二次模拟考试数学(理)试卷河北省武邑中学2017届高三下学期二模考试数学(文)试题山西省三区八校2017届高三第二次模拟考试数学(文)试题湖南省长沙市明德中学2019-2020学年高三上学期9月月考数学(文)试题(已下线)专题9.6 直线与圆锥曲线(精练)-2021年高考数学(文)一轮复习学与练福建省龙海市第二中学2021届高三年上学期第三次月考数学试题河南省河南大学附属中学2021-2022学年高三上学期11月月考数学文科试题
名校
解题方法
10 . 已知椭圆
:
过点
和点
.
(1)求椭圆
的方程;
(2)设直线
与椭圆
相交于不同的两点
,
,记线段
的中点为
,是否存在实数
,使得
?若存在,求出实数
;若不存在,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03a4b33ce54468dee4b89f2ba25ddf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4bc333cee094e9dd8f1f3ff86adc95f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54479885d4ab2f717d2e97718da04b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3fc5c077cff3ef54fc01f8b41e34e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-04-04更新
|
1783次组卷
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9卷引用:北京市清华附中2017-2018学年高三数学十月月考试题(文)
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