解题方法
1 . 已知两定点
,
,过动点
的两直线
和
的斜率之积为
.设动点
的轨迹为
.
(1)求曲线
的方程;
(2)设
,过
的直线
交曲线
于
、
两点(不与
、
重合).设直线
与
的斜率分别为
,
,证明
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/8671e4ccb0d0da8b6cf19b0669fe76d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.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/67351fe10fcfc3f9072eec4c60bfaaa5.png)
您最近一年使用:0次
解题方法
2 . 直线
与椭圆
总有公共点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0399de4659dca7ca95ae7eda823ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 已知椭圆
的左、右焦点分别为
,过
的直线
交椭圆
于
两点(
在
的上方),
,且
,则( )
![](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/a3fb78c5f885034612c0e030b920143d.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/01c74a907dda6bb7d9d56d009d9df253.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/4be0160e528ddd1d2a7f20ad378879c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f331a07e220f30123c6e6f09e97b2aee.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
4 . 设椭圆
:
的左、右顶点分别为C,D,且焦距为2.F为椭圆的右焦点,点M在椭圆上且异于C,D两点.若直线
与
的斜率之积为
.
(1)求椭圆
的标准方程;
(2)过点
作一条斜率不为0的直线与椭圆E相交于A,B两点(A在B,P之间),直线
与椭圆E的另一个交点为H,求证:点A,H关于x轴对称.
![](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/c884b508394b3ab50734b584d9ec783c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af74113f38fffeed8075e57d7f9d2533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
您最近一年使用:0次
2023-11-23更新
|
868次组卷
|
3卷引用:河南省开封市五县2023-2024学年高二上学期期中联考数学试题
河南省开封市五县2023-2024学年高二上学期期中联考数学试题辽宁省沈阳市辽宁省实验中学2023-2024学年高二上学期12月月考数学试题(已下线)微考点6-3 圆锥曲线中的定点定值问题(三大题型)
名校
5 . 已知椭圆的上、下焦点分别为
,
,O为坐标原点.
(1)若点P在椭圆C上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f6bccd63572d3f37da409fda25af6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcefd18333f55a3aa65c444d68feed1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
您最近一年使用:0次
2023-11-17更新
|
703次组卷
|
4卷引用:河南省郑州市宇华实验学校2024届高三上学期期中数学试题
河南省郑州市宇华实验学校2024届高三上学期期中数学试题安徽省名校联盟2023-2024学年高二上学期期中数学试题(已下线)热点7-2 椭圆及其应用(8题型+满分技巧+限时检测)(已下线)专题26 直线与圆锥曲线的位置关系5种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教B版2019选择性必修第一册)
名校
解题方法
6 . 在平面直角坐标系
中,已知椭圆
的左、右焦点分别为
,
,
为
上一点,
的面积最大值为2.
(1)求C的方程;
(2)在直线
上任取一点
,直线
与直线
交于点
,与椭圆
交于
两点,若对任意
,
恒成立,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486279e7ff9f2b76c2ce712f5dedcb9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385afe18c3fad66fdeadf74be824283c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08bc0e395049f7d7a680404b22140b1.png)
(1)求C的方程;
(2)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aedb55048f5efb1fcc467c95d8ab3073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e35f3169e68f874bb31cb8a31caec87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f97523efcb9a907700d21a116d8b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-11-04更新
|
289次组卷
|
2卷引用:河南省南阳六校2023-2024学年高二上学期期中考试数学试题
名校
解题方法
7 . 已知直线
过椭圆
的一个顶点和一个焦点.
(1)求
的方程;
(2)若过点
的直线l与C交于
,
两点,且
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596c08deef3ff5a187f637801f8a83c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6baec876ec78a1bf31d5a7a905e1f8.png)
您最近一年使用:0次
2023-11-04更新
|
952次组卷
|
2卷引用:河南省南阳六校2023-2024学年高二上学期期中考试数学试题
名校
解题方法
8 . 已知椭圆
,离心率
,过点
.
(1)求
的方程;
(2)直线
过点
,交椭圆与
两点,记
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25e326fdf9e5456f48e8a99a069f379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74c92e835e6811cdf63caf16ed19af9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06bd042cab64ba961e54d75f69d12dcf.png)
您最近一年使用:0次
9 . 已知直线l:y=kx+m与椭圆
交于A,B两点,点F为椭圆C的下焦点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8819ba9098daa6e24622fc975ab87d91.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2023-04-14更新
|
882次组卷
|
2卷引用:河南省驻马店市驻马店高级中学2022-2023学年高二下学期期中数学试题
名校
解题方法
10 . 已知椭圆
上有点
,左、右焦点分别为
.
(1)求椭圆的标准方程;
(2)若点Q为椭圆的上顶点,椭圆上有异于Q的两点
满足
,求证:直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc2210a7e09298897f6585ad08a70d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
(1)求椭圆的标准方程;
(2)若点Q为椭圆的上顶点,椭圆上有异于Q的两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0615bfe416db14d15783f764613ae84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2022-12-06更新
|
778次组卷
|
8卷引用:河南省濮阳市2022-2023学年高二上学期期中数学试题