名校
解题方法
1 . 已知椭圆
(a>b>0)的离心率
,四个顶点组成的菱形面积为
,O为坐标原点.
(1)求椭圆E的方程;
(2)过
上任意点P作
的切线l与椭圆E交于点M,N,求证
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fe9059acc47d2447576e1260c4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453ea8f3a2b85526b54bf453871c3820.png)
(1)求椭圆E的方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf35adb1a07837534c1483b0e4f184a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e057c31608d8a78166c09ddeb3a5a3.png)
您最近一年使用:0次
2022-05-10更新
|
1107次组卷
|
3卷引用:四川省南充高级中学2022-2023学年高二下学期第一次月考数学(理科)试题
名校
解题方法
2 . 已知椭圆
经过点
,其右顶点为
.
(1)求椭圆
的方程;
(2)若点
、
在椭圆
上,且满足直线
与
的斜率之积为
,证明直线
经过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e454c7161999e2a67138869f59d319b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8930e9a26a52a6b09740c1dddbd40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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2022-05-09更新
|
683次组卷
|
6卷引用:四川省宜宾市叙州区第一中学校2022-2023学年高二上学期第一学月考试数学(文)试题
四川省宜宾市叙州区第一中学校2022-2023学年高二上学期第一学月考试数学(文)试题河南省濮阳市第一高级中学2021-2022学年高二下学期期中考试数学(理)试题(已下线)2022年全国高考乙卷数学(理)试题变式题13-16题(已下线)2022年全国高考乙卷数学(文)试题变式题13-16题(已下线)2022年全国高考乙卷数学(理)试题变式题17-20题(已下线)2022年全国高考乙卷数学(文)试题变式题21-23题
名校
解题方法
3 . 已知椭圆
:
的长轴长是短轴长的两倍,且过点
.
(1)求椭圆
的方程.
(2)设椭圆
的下顶点为点
,若不过点
且不垂直于坐标轴的直线
交椭圆
于
,
两点,直线
,
分别与
轴交于
,
两点.若
,
的横坐标之积是2,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f4aad2e5282f87f561e6aa91d0a32a.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设椭圆
![](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/5963abe8f421bd99a2aaa94831a951e9.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2022-03-25更新
|
1242次组卷
|
6卷引用:四川省成都市简阳市阳安中学2022-2023学年高三上学期10月月考数学(文科)试题
2022高三·全国·专题练习
4 . 在平面直角坐标系
中,已知
分别是椭圆
的左、右焦点,椭圆
与抛物线
有一个公共的焦点,且过点
.
(1)求椭圆
的方程;
(2)设直线l与椭圆
相交于
、
两点,若
(O为坐标原点),试判断直线l与圆
的位置关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f729f918900b215c9721da1b44efdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c9c1fc1ba184e358a80bdd7538d92a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/399b3c1136d1f0e717e95b69c4c2bc63.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)设直线l与椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.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/2bfe4da6f357e55927d25d9d27ea8717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16f562654c7b3102df1212dd653707e.png)
您最近一年使用:0次
名校
解题方法
5 . 在平面直角坐标系中,椭圆
的离心率为
,且点
在椭圆
上.
(1)求椭圆
的方程;
(2)若直线
交椭圆
于
、
两点,弦
的中点为
,直线
与
的斜率之积为
且
、
记直线
与
的斜率分别为
,
,请探究:是否存在正实数
,使得
,
为定值?若存在,请求出
及
,
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be112e60e2e0adcad51a2686ccdc42d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d59419fff2c12efda787ef2c195af18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ff05fd4f803996441911372da9a731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dfa12e7aa851696aa6ce44ef26a065b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e04a51cfa4828ee9255213ef164755b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c30c9fbcef9dabacb7d07bdc3e0f7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
您最近一年使用:0次
2022-03-05更新
|
201次组卷
|
4卷引用:四川省内江市第六中学2021-2022学年高二下学期第一次月考数学(文科)试题
名校
解题方法
6 . 设a,b是实数,若椭圆
过点
,且离心率为
.
(1)求椭圆E的标准方程;
(2)过椭圆E的上顶点P分别作斜率为
,
的两条直线与椭圆交于C,D两点,且
,试探究过C,D两点的直线是否过定点?若过定点,求出定点坐标;否则,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆E的标准方程;
(2)过椭圆E的上顶点P分别作斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25cfd039769976fb02da8a26b8d2957c.png)
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2022-03-01更新
|
655次组卷
|
4卷引用:四川省遂宁中学校2021-2022学年高二下学期3月月考数学(理)试题
四川省遂宁中学校2021-2022学年高二下学期3月月考数学(理)试题江苏省宿迁市2021-2022学年高二上学期期末数学试题福建福州铜盘中学2022-2023学年高二上学期期末考试数学试题(已下线)高二上学期期末【压轴60题考点专练】(选修一+选修二)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
名校
解题方法
7 . 已知椭圆
的左焦点为F,离心率为
,斜率为
的直线l过点F和点
.
(1)求椭圆C的标准方程;
(2)过点
的直线m交椭圆C于点M、N,且满足
(O为坐标原点),求直线m的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234e7679481ec0d01c915b7fbb71891d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e8fdcb41998ea6eada5732a9e3fba6.png)
(1)求椭圆C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e810cb506e1746a0a49610e0d897f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee799c65d87702c0c7836db01d8a43c.png)
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2022-02-21更新
|
594次组卷
|
6卷引用:四川省成都市实验外国语学校2021-2022学年高二下学期第一次阶段性考试数学(文)试题
四川省成都市实验外国语学校2021-2022学年高二下学期第一次阶段性考试数学(文)试题四川省成都市实验外国语学校2021-2022学年高二下学期第一次阶段性考试数学(理)试题云南省保山市2022届高三第一次教学质量监测数学(理)试题(已下线)思想02 分类与整合思想(讲)--第三篇 思想方法篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)思想02 分类与整合思想(练)--第三篇 思想方法篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》(已下线)重难点05 圆锥曲线-2022年高考数学【热点·重点·难点】专练(全国通用)
名校
8 . 已知曲线
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8fd1e46538d6c84eda3c81b703aa07.png)
A.若![]() ![]() |
B.若![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2022-02-15更新
|
594次组卷
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5卷引用:四川省宜宾市叙州区第一中学校2023-2024学年高二上学期12月月考数学试题
9 . 如图,已知椭圆
的焦点是圆
与x轴的交点,椭圆C的长半轴长等于圆O的直径.
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896265586606080/2915716242227200/STEM/d73f9f77bb3f419c9bf2254aed03407a.png?resizew=162)
(1)求椭圆C的方程;
(2)F为椭圆C的右焦点,A为椭圆C的右顶点,点B在线段FA上,直线BD,BE与椭圆C的一个交点分别是D,E,直线BD与直线BE的倾斜角互补,直线BD与圆O相切,设直线BD的斜率为
.当
时,求k.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896265586606080/2915716242227200/STEM/d73f9f77bb3f419c9bf2254aed03407a.png?resizew=162)
(1)求椭圆C的方程;
(2)F为椭圆C的右焦点,A为椭圆C的右顶点,点B在线段FA上,直线BD,BE与椭圆C的一个交点分别是D,E,直线BD与直线BE的倾斜角互补,直线BD与圆O相切,设直线BD的斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9700ce79eeb1fa4503dbf3c6cc36e79b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c83c57c5c1540947c705f431333f56.png)
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2022-02-13更新
|
1239次组卷
|
3卷引用:四川省达州市达川区铭仁园学校2022-2023学年高二上学期第一次规范性训练文科数学试题
四川省达州市达川区铭仁园学校2022-2023学年高二上学期第一次规范性训练文科数学试题四川省达州市2021-2022学年高二上学期期末数学(文)试题(已下线)专题18 圆锥曲线中的张角问题 微点2 椭圆的直张角模型
名校
解题方法
10 . 已知椭圆
的左、右焦点分别为
,且
,直线
过
与
交于
两点,
的周长为8.
(1)求
的方程;
(2)过
作直线交
于
两点,且向量
与
方向相同,求四边形
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2644e9f73e5871db934fdafc431d675.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ea1c3fe8431260ecb8dffcdae8d570.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
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您最近一年使用:0次
2022-01-26更新
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717次组卷
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5卷引用:四川省阆中中学校2021-2022学年高二下学期第一次学习水平检测数学(理科)试题