解题方法
1 . (1)已知双曲线的一条渐近线方程是
,焦距为
,求双曲线的标准方程.
(2)求以双曲线C:
的焦点为顶点,顶点为焦点的椭圆标准方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4541bd6a12515d83b3a2ba8378fed1d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38acfaa0f912c2598cc341ec98da8a08.png)
(2)求以双曲线C:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a0bd4bd9985f1e367c100b453ed03f.png)
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2 . 已知椭圆C:
(
)的长轴长是短轴长的3倍,且椭圆C经过点
.
(1)求椭圆C的方程.
(2)设A是椭圆C的右顶点,P,Q是椭圆C上不同的两点,直线
的斜率分别为
,
,且
.过A作
,垂足为B,试问是否存在定点M,使得线段
的长度为定值?若存在,求出该定点;若不存在,请说明理由.
![](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/c08e69243051ead9e21605e11daae67a.png)
(1)求椭圆C的方程.
(2)设A是椭圆C的右顶点,P,Q是椭圆C上不同的两点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.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/03b8bfb1960c394ccfb7bb12de1c1b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb780dea4bb7d09bf3cb08b7258ebbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
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2024-02-06更新
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3卷引用:新疆兵团地州学校2023-2024学年高二上学期期末联考数学试题
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3 . 圆
与
的位置关系为______ ;与圆
,
都内切的动圆圆心的轨迹方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f137a4a18b73e7286db82588ba2fd975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5093d0fbea77573dd366f6a8361bbc2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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2024-02-06更新
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4 . 设
为空间中两直线的夹角,则在平面直角坐标系中方程
表示的曲线可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c820ed428097cf661c7f74bc7cfe8f.png)
A.两条相交直线 | B.圆 |
C.焦点在x轴上的椭圆 | D.焦点在x轴上的双曲线 |
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解题方法
5 . 已知椭圆
的左、右焦点分别为
,上、下顶点分别为
,四边形
的面积为
,且
.
(1)求椭圆
的标准方程;
(2)过点
的直线
与椭圆
交于
两点,连接
,若直线
的一个方向向量为
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34c0b2434f080f2187a1722f3c00b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887e6a708586e18b1aa8690ad40f7036.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbaa023d0248161917794c5592fd3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
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解题方法
6 . 已知椭圆
经过点
,且离心率为
.
(1)求椭圆
的方程;
(2)已知直线
不过点
且与椭圆
交于
、
两点,直线
、
的斜率分别为
、
,则
,证明:直线
过定点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/2a30c084de07c0c84de9348cfa688088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec40ff4479edca2ed18b6cadb8db72f.png)
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解题方法
7 . 在平面直角坐标系中,已知椭圆
的离心率为
,且
过点
.
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设过点
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66062b4e4bd7cae3aa5873c246b7df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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8 .
为何值时,方程
表示下列曲线:
(1)圆?
(2)椭圆?
(3)双曲线?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac10efd655c85c280f45b4055291794.png)
(1)圆?
(2)椭圆?
(3)双曲线?
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解题方法
9 . 已知焦点在
轴上,且
,
,则:
(1)求椭圆标准方程;
(2)求椭圆离心率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
(1)求椭圆标准方程;
(2)求椭圆离心率.
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解题方法
10 . 已知椭圆的两个焦点分别为
,并经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c2a4df48105483710ac6e89c384d47.png)
(1)求椭圆的标准方程
(2)过坐标原点且倾斜角为
的直线与椭圆交与A,B两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a280db0e78c2f2163aa2951a530e15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c2a4df48105483710ac6e89c384d47.png)
(1)求椭圆的标准方程
(2)过坐标原点且倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21efe7f6e984a4892dbe82fc9c03a1e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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