名校
1 . 已知椭圆
的离心率为
,右焦点到直线
的距离为
.
(1)求椭圆的方程;
(2)过点
作直线
交椭圆于
两点,交
轴于
点,满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac01ad57b76eeb3505b9c89141877d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a58d24f5ba9d4a03d3ea8feed02f55.png)
(1)求椭圆的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242dc4cf2720b503e26ec8017d31444f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f74613428f96005549c8d14d23ad06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-05-07更新
|
1180次组卷
|
2卷引用:江西省南康中学2018-2019学年高二下学期期中考试(第二次大考)数学(文)试题
名校
解题方法
2 . 已知
,
分别为椭圆C:
的左、右焦点,点
在椭圆C上.
(1)求
的最小值;
(2)已知直线l:
与椭圆C交于两点A、B,过点
且平行于直线l的直线交椭圆C于另一点Q,问:四边形PABQ能否成为平行四边形?若能,请求出直线l的方程;若不能,请说明理由.
![](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/4a5f4b244b3b0799cfb1994364036eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77dc6fa541a47b1f553f0c512ec0cebf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1671c9ca8819fc5423afd43ea7d9d7.png)
(2)已知直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee85518b2b2d8cf380165d27259ee48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a77c73e21193ed76c1576558655544c.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
的离心率为
,右焦点为
.
(
)求椭圆
的方程.
(
)设点
为坐标原点,过点
作直线
与椭圆
交于
,
两点,若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ed2c6c8e93e6ba3737bf4b2aa2b81c.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/2a30f3a8b673cc28bd90c50cf1a35281.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/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2018-02-24更新
|
688次组卷
|
5卷引用:江西省景德镇一中2020-2021学年高一(2班)下学期期中考试数学试题
名校
解题方法
4 . 设直线
:
(
)与椭圆
相交于
,
两个不同的点,与
轴相交于点
,记
为坐标原点.
(1)证明:
;
(2)若
,求
的面积取得最大值时的椭圆方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae077b198c3e6a891ca7c5eb6d53482a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db360bb91dc66da6697e1a88adced3c.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a85b49349e64800447db4dbfb32894.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c10f791d042dc21f4dddcfbe12e551c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
您最近一年使用:0次
2017-02-16更新
|
701次组卷
|
2卷引用:江西省赣州市寻乌中学2017-2018学年高二上学期期中考试数学(理)试题
解题方法
5 . 已知椭圆
:
,其中
,
为左、右焦点,且离心率
,直线
与椭圆交于两不同点
,
.当直线
过椭圆
右焦点
且倾斜角为
时,原点
到直线
的距离为
.
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572069106720768/1572069112512512/STEM/ac96d7fe-3101-4368-9b1b-997a2deb197b.png?resizew=204)
(Ⅰ)求椭圆
的方程;
(Ⅱ)若
,当
面积为
时,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a0a43a5b4d5b4bb4e3e936b032a80a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af405a054bfe7fb7ce40e48d816467e1.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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/2015/4/13/1572069106720768/1572069112512512/STEM/ac96d7fe-3101-4368-9b1b-997a2deb197b.png?resizew=204)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ae387b524a622bc8a8aa34a65100b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2969ed9ba40bbcb2a5aa64d44f099785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839c7616cd0d90265f4b2c9c021254fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138c84de38df17fcc8571ededf847c4.png)
您最近一年使用:0次
2016-12-03更新
|
2665次组卷
|
5卷引用:2015-2016学年江西南昌二中高二上学期期中理科数学试卷
13-14高三上·江西赣州·期中
名校
解题方法
6 . 已知抛物线
的焦点为F2,点F1与F2关于坐标原点对称,以F1,F2为焦点的椭圆C过点
.
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)设点![](https://img.xkw.com/dksih/QBM/2013/11/28/1571412431994880/1571412438073344/STEM/fb38d810da354f8cba10e495a86416bd.png)
,过点F2作直线
与椭圆C交于A,B两点,且
,若
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf2d08ec1910c9f56333cbe6d419299.png)
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)设点
![](https://img.xkw.com/dksih/QBM/2013/11/28/1571412431994880/1571412438073344/STEM/fb38d810da354f8cba10e495a86416bd.png)
![](https://img.xkw.com/dksih/QBM/2013/11/28/1571412431994880/1571412438073344/STEM/057693b46638462f8ec32e5988db98dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf76b2d9212c383f86ec3262d2f2c89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65ad0a098d5860834005d46a6f4cffa.png)
您最近一年使用:0次
7 . 设
,
分别为椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
的左右焦点,过
的直线
与椭圆
相交于
,
两点,直线
的倾斜角为
,
到直线
的距离为
.
(Ⅰ)求椭圆
的焦距;
(Ⅱ)如果
,求椭圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.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/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/2d5bca00fa20e6e80480b9d06d2e52ee.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/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706b8c6c4867aa1538ba4c3e8e6ce5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2016-11-30更新
|
310次组卷
|
15卷引用:2010年江西省高安中学高二上学期期中考试理科数学卷
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