名校
解题方法
1 . 已知椭圆
的离心率为
,椭圆上的点到焦点的距离的最大值为3.
(1)求椭圆C的标准方程;
(2)设A,B两点为椭圆C的左、右顶点,点P(异于左、右顶点)为椭圆C上一动点,直线PA,PB的斜率分别为
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆C的标准方程;
(2)设A,B两点为椭圆C的左、右顶点,点P(异于左、右顶点)为椭圆C上一动点,直线PA,PB的斜率分别为
![](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/6b881044b5c73db6fcce110525741b02.png)
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7日内更新
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236次组卷
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2卷引用:青海省海东市民和回族土族自治县城西高级中学2023-2024学年高二下学期3月月考数学试题
解题方法
2 . (1)求以
为渐近线,且过点
的双曲线
的方程;
(2)求以双曲线
的顶点为焦点,焦点为顶点的椭圆
的方程;
(3)椭圆
上有两点
,
,
为坐标原点,若直线
,
斜率之积为
,求证:
为定值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e229870f126b31e37965bc0c58667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9688d9222656b5855e27689123d560ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求以双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f6c5fd93aed88bec58002a20ea2e90.png)
您最近一年使用:0次
3 . 已知
,
是椭圆
的两个焦点,
,
为C上一点
(1)求椭圆C的标准方程;
(2)若P为C上一点,且
,求
的面积.
![](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/be112e60e2e0adcad51a2686ccdc42d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2644e9f73e5871db934fdafc431d675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4b5b3660e352c3fc3ede794022be9d.png)
(1)求椭圆C的标准方程;
(2)若P为C上一点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6ec265fda4da82401ccd036f5ab5d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
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2023-12-15更新
|
178次组卷
|
2卷引用:青海省西宁市部分学校2023-2024学年高二上学期期末联考数学试题
名校
解题方法
4 . 已知椭圆
(a>0,b>0)的右焦点F在直线
上,A,B分别为C的左、右顶点,且
.
(1)求C的标准方程;
(2)过点
的直线l与C交于P,Q两点,线段PQ的中点为N,若直线AN的斜率为
,求直线l的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7690f62e0b3a59c3ff0c31fe4033de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f8f333303816ff66e3aa44bcf97268.png)
(1)求C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb203d8908ffd00fc19e6d8b5f3eae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
您最近一年使用:0次
2023-05-24更新
|
625次组卷
|
3卷引用:青海省海东市2023届高三第三次联考数学(文科)试题
名校
解题方法
5 . 已知椭圆
的左、右焦点分别为
、
,过
的直线
交
于
、
两点(不同于左、右顶点),
的周长为
,且
在
上.
(1)求
的方程;
(2)若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/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/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7305fdcc52036f7adab76dd8bb1a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52caaf0a4e3fe82f24a1999e4698b7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023-04-23更新
|
380次组卷
|
3卷引用:青海省玉树州2023届高三第三次联考数学文科试题
6 . 已知椭圆
过点
,直线
与
交于
两点,且线段
的中点为
为坐标原点,直线
的斜率为
.
(1)求
的标准方程;
(2)已知直线
与
有两个不同的交点
为
轴上一点.是否存在实数
,使得
是以点
为直角顶点的等腰直角三角形?若存在,求出
的值及点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182c81fb1c5e6d1a57a5f34a31ee69a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4147f37263dc5cdebcf9d53b758977dc.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91219670f597461ea7c6b7f259ff039a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4cd68cc82e90a5e2049a7ea3171b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ebce8b2a915356ed39f36c5bad2ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81687c0af83f550bcb802e2d82c76a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-02-03更新
|
669次组卷
|
8卷引用:青海省西宁市大通回族土族自治县2023届高三第二次模拟理科数学试题
名校
解题方法
7 . 已知
,
为椭圆C上两点,
为椭圆C的左焦点.
(1)求椭圆C的方程;
(2)设直线
与椭圆C有且仅有一个公共点,与直线
交于点M,与直线
交于点N,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8be875c8d09bb747e4d95575bf97d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d78587da58e8dd460f83014389f046a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
(1)求椭圆C的方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd51224ea09b9daf96602f94993ff87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6a9687221466a417cc70aa691a0487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589760dbd8a79e3915da0ee98df41469.png)
您最近一年使用:0次
名校
解题方法
8 . 已知椭圆
的左、右顶点分别为
,
,离心率为
.
(1)求椭圆C的方程;
(2)已知直线
,M是椭圆C上异于A,B的任意一点,直线AM交直线l于点P,直线BM交直线l于点Q.求证:以PQ为直径的圆恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的方程;
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0778559e1601f19625786dc20304fe8.png)
您最近一年使用:0次
2022-11-26更新
|
289次组卷
|
3卷引用:青海省西宁市大通回族土族自治县2022-2023学年高二上学期期末考试数学(理)试题
名校
解题方法
9 . 已知椭圆W:
的离心率为
,左、右焦点分别为
,
,过
且垂直于x轴的直线被椭圆W所截得的线段长为
.
(1)求椭圆W的方程;
(2)直线
与椭圆W交于A,B两点,连接
交椭圆W于点C,若
,求直线AC的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
(1)求椭圆W的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa841ce5d58b64f747a3c1b69bb20a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6950900f2551c9b195f16d617275adfe.png)
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2022-11-23更新
|
336次组卷
|
7卷引用:青海省海东市2022-2023学年高三上学期12月第一次模拟数学(文)试题
名校
解题方法
10 . 已知椭圆C:
(
)的左、右焦点分别为
,
,过
的直线l与椭圆C相交于A,B两点,直线l的倾斜角为45°,
到直线l的距离为
.
(1)求椭圆C的焦距;
(2)若
,求椭圆C的方程.
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求椭圆C的焦距;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a8ce713e8c40e21841ee757bb03e4b.png)
您最近一年使用:0次
2022-07-08更新
|
1128次组卷
|
12卷引用:青海省海东市2021-2022学年高二下学期期末考试数学(文)试题
青海省海东市2021-2022学年高二下学期期末考试数学(文)试题河北省邢台市2021-2022学年高二下学期期末数学试题陕西省商洛市2021-2022学年高二下学期期末文科数学试题广西贵港市2021-2022学年高二下学期期末教学质量监测数学(理)试题陕西省商洛市2021-2022学年高二下学期期末理科数学试题贵州省毕节市2021-2022学年高二下学期联合考试数学(理)试题内蒙古自治区通辽市霍林郭勒市2021-2022学年高二下学期期末数学理科试题重庆市南开中学校2022-2023学年高二上学期11月月考数学试题天津市河东区2022-2023学年高二上学期期中数学试题2.1椭圆单元测试——2022-2023学年高二上学期数学北师大版(2019)选择性必修第一册陕西省商洛市洛南中学2022-2023学年高二下学期6月月考文科数学试题黑龙江省绥化市海伦市第二中学2023届高三上学期期中数学试题