1 . 已知椭圆
的离心率
,直线
与椭圆交于
两点.当直线
的方程为
时,经过椭圆长轴的一个顶点.
(1)求
的方程;
(2)坐标原点为
,在
上有异于
的一点
,满足
,试判断
的面积是否为定值?如果为定值,求出定值;如果不为定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234e7679481ec0d01c915b7fbb71891d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8899120b2981b286eef324089cd9050.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)坐标原点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfac2dca1218146f296a3cff7a0029a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44aa4045bdfad62809441d59206aa390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解题方法
2 . 已知椭圆方程为
,过椭圆的
的焦点
分别做
轴的垂线与椭圆交于四点,依次连接这四个点所得的四边形恰好为正方形.
(1)求该椭圆
的离心率.
(2)若椭圆
的顶点恰好是双曲线
焦点,椭圆
的焦点恰好是双曲线
顶点,设椭圆
的焦点
,双曲线
的焦点
为
与
的一个公共点,记
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求该椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e70ab7d7307661b15ad4e2162181e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d16e69e3f199e997ef40e321fb945a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46cc87319efe1341a3d5e66b2a9e261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90c37a58bb4575a7bb223c3ab776163.png)
您最近一年使用:0次
解题方法
3 . 双曲线
经过点
,一条渐近线的倾斜角为
,直线
过双曲线的右焦点
,交双曲线于
两点.
(1)求双曲线
的标准方程;
(2)若
过双曲线的右焦点
,是否存在
轴上的点
,使得直线
绕点
无论怎样转动,都有
成立?若存在,求出
的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523dc1d69ef1e93ca39a007e5d39122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/8649ce18c628d0e03e72cef541f8284f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d79ef94d43b2afa595c580906358b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8649ce18c628d0e03e72cef541f8284f.png)
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆
的四个顶点所构成四边形的面积为
,点
在
上.
(1)求椭圆
的方程;
(2)直线
经过
的右焦点
交
于
,
两点,
轴,交直线
于点
,试问直线
是否恒过定点?若过定点,求出该定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b76e364a93cd78537c6c97b88021f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/7ccb7a14074460f0fd65dc22b5a767f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
5 . 已知椭圆C:
的右顶点为
,过左焦点F的直线
交椭圆于M,N两点,交
轴于P点,
,
,记
,
,
(
为C的右焦点)的面积分别为
.
(1)证明:
为定值;
(2)若
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a98eaaab44a91d0bad21dbd260be770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2dc32a930595d3e6d87ac24701a9364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348907f672c64a4563ce9e9e5edd53b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a79adfd9e2b87b864803e4505d2a0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9946d1ce220afa1625ebb09c34b56c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed0ccdab6cfb38a35f9dea720df03c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61d572ecf27dc02fcbd588f24647b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf4e20ea341827ce5f9552daee39462.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a07a2f0db1140e0588aa19f7884ba5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48559d27a71801cef4c97312886d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-11-23更新
|
1722次组卷
|
8卷引用:湖南省郴州市原创试题评比参评2022届高三高考模拟数学试题(安仁一中命制)
湖南省郴州市原创试题评比参评2022届高三高考模拟数学试题(安仁一中命制)福建省三校联考2022-2023学年高二上学期期中考试数学试题(已下线)数学(新高考Ⅰ卷B卷)江苏省南京市雨花台中学2022-2023学年高三上学期期中数学试题(已下线)专题13 圆锥曲线压轴解答题常考套路归类(精讲精练)-3重庆市2023届高三下学期第一次联考数学试题(已下线)模块六 专题8 易错题目重组卷(重庆卷)辽宁省沈阳市浑南区东北育才学校试验部2023-2024学年高二上学期12月月考数学试题
名校
解题方法
6 . 已知椭圆
的离心率为
,过坐标原点
的直线交椭圆
于
两点,其中
在第一象限,过
作
轴的垂线,垂足为
,连接
.当
为椭圆的右焦点时,
的面积为
.
(1)求椭圆
的方程;
(2)若
为
的延长线与椭圆
的交点,试问:
是否为定值,若是,求出这个定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/148893831954124f313e725811b1b6cd.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
您最近一年使用:0次
2022-10-29更新
|
759次组卷
|
3卷引用:湖南省郴州市2022-2023学年高三上学期第一次教学质量监测数学试题
名校
解题方法
7 . 已知椭圆C:
的离心率为
,左顶点坐标为
.
(1)求椭圆C的方程;
(2)过点
的直线l与椭圆C相交于M,N两点,设点
,问:直线BM,BN的斜率之和
是否为定值?若是,请求出该值;否则,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
(1)求椭圆C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f047e7ed44a3897ec79c6c6a0c641fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cba284d675a3028d7a8d54f1f8ae70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d37ada8d3b59c983880b013ad973ae55.png)
您最近一年使用:0次
2022-07-07更新
|
741次组卷
|
5卷引用:湖南省郴州市2021-2022学年高二下学期期末数学试题
名校
解题方法
8 . 如图,在平面直角坐标系
中,已知椭圆
:
,椭圆
:
,点P为椭圆
的上顶点,点A,C为椭圆
上关于原点对称的两个动点.斜率为
的直线PA与椭圆
交于另一点B,斜率为
的直线PC与椭圆
交于另一点D
![](https://img.xkw.com/dksih/QBM/2021/12/2/2863972923965440/2869021459865600/STEM/de5484fd5ba9479cbb4ea0f1958f03ed.png?resizew=287)
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6dba18751d6641f9fa02f5756be97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def6b1847098dd39d653c77786cb4eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://img.xkw.com/dksih/QBM/2021/12/2/2863972923965440/2869021459865600/STEM/de5484fd5ba9479cbb4ea0f1958f03ed.png?resizew=287)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656972781ee6edb9ffa86a65b408bc74.png)
您最近一年使用:0次
2021-12-09更新
|
439次组卷
|
7卷引用:湖南省郴州市嘉禾县第一中学2021-2022学年高二上学期10月月考数学试题
解题方法
9 . 已知椭圆C:
(
)的离心率为
,直线
与椭圆C有且只有一个公共点.
(1)求椭圆C的标准方程
(2)设点
,
,P为椭圆C上一点,且直线
与
的斜率乘积为
,点M,N是椭圆C上不同于A,B的两点,且满足
,
,求证:
的面积为定值.
![](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/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d2d0eb98a3265ee04d540f3e59909b.png)
(1)求椭圆C的标准方程
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca22d434c8671cf39eba5fa03b31ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2d7ff2b15c4e93fe6b92baca3c76d5.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/459c84c9addfbd1cdd0a877ba7c584e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135642ee219ef29253e7bd35e4f47362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c0635e65b4dfedde8b411e5626aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
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解题方法
10 . 已知椭圆
的离心率为
,且过点
.
(1)求椭圆E的标准方程;
(2)问:是否存在过点
的直线l,使以直线l被椭圆E所截得的弦
为直径的圆过点
,若存在,求出直线l的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
(1)求椭圆E的标准方程;
(2)问:是否存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ed90ebf0061c8a79beed307fc1719a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8350efd6636002f417d721fc87a126.png)
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