1 . 在平面直角坐标系
中,已知点
,
,动点
满足直线
与
的斜率之积为
,记P的轨迹为曲线C.
(1)求C的方程;
(2)设点M在直线
上,过M的两条直线分别交C于A,B两点和P,Q两点,且
,求直线
的斜率与直线
的斜率之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e788c747c01bb744d887029acaefee87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b81d7e0ae6cd2a96fa75ede38b5798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc48974114e23f5a801843710c7ae21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
(1)求C的方程;
(2)设点M在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9c2a1967b70b7e8b486b03f1f4290b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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解题方法
2 . 设抛物线
的准线与
轴交于
,焦点为
,以
、
为焦点,离心率
的椭圆与抛物线的一个交点为
,自
引直线交抛物线于
、
两个不同的点,点
关于
轴的对称点记为
,设
.
(1)求抛物线的方程和椭圆的方程;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478560c0e58cd542c0d9cdf3d049b8ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4694df7bd84ce284f10c6f7b284faa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b3bf0867eaad259f29391e75eb63bb.png)
(1)求抛物线的方程和椭圆的方程;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddec8b37824ab314ad78991d659abd5.png)
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解题方法
3 . 已知椭圆
:
经过点
,左、右焦点分别为点
、
,离心率
,点
,
是直线
上的两个动点,且
.
(1)求椭圆
的方程;
(2)求线段
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f96948c49e1a46bd6e52fe47984001c.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/d5c7316976a221c051a2c14df80b1347.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/b7bee900e045865453b6019a0d34964c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537eec2a42add1854dd4048ace67c1c8.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
您最近一年使用:0次
4 . 在直线上任取一点P,过点P以椭圆
的焦点为焦点作椭圆,当点P在何处时,所作椭圆的长轴最短?并求出长轴最短时的椭圆方程.
您最近一年使用:0次
解题方法
5 . 已知抛物线
经过椭圆
的两个焦点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/19/90a3be1e-8525-415e-82af-b72b7b9c0cda.png?resizew=173)
(1)求椭圆
的离心率;
(2)设
,又点
为
与
不在
轴上的两个交点,若
的重心在抛物线
上,求
和
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ee03b5f5c40c4a64e15bd90673783e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2cfc8743c915f45bdccca70ab16648.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/19/90a3be1e-8525-415e-82af-b72b7b9c0cda.png?resizew=173)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208f32acf0666fcc867c56e41e0e7562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0023c9e8e0fec24d3aa77d09b2e4e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
您最近一年使用:0次
名校
解题方法
6 . 已知椭圆
的两个焦点分别为
,
,过点
且与
轴垂直的直线交椭圆
于
,
两点,
的面积为
,椭圆
的离心率为
.
(1)求椭圆
的标准方程;
(2)已知
为坐标原点,直线
与
轴交于点
,与椭圆
交于
,
两个不同的点,若存在实数
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef404abca1f78da130a38849f58559.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/5585a42c8f07ad90b94ace9db3d78994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d334f84a83f69cf018bd625fad880be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-03-13更新
|
2828次组卷
|
20卷引用:第十四届高二试题(A卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
第十四届高二试题(A卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)河北省阜城中学2017-2018学年高二上学期第六次月考数学(文)试题云南省红河州泸西一中2017─2018学年高二上学期期末考试理科数学试题广东省揭阳市普宁市2021-2022学年高二上学期期末数学试题山东省莱州市第一中学2021-2022学年高二下学期开学考试数学试题湖北省黄冈市罗田县第一中学2021-2022学年高二实验班下学期3月月考数学试题黑龙江省佳木斯市第十二中学2021-2022学年高二下学期期中数学试题安徽省合肥一六八中学2022-2023学年高二上学期期中数学试题2017届河南省安阳市高三第一次模拟考试数学(文)试卷辽宁省锦州市2017届高三质量检测(一)数学(理)试题湖北省荆州中学2018届高三上学期第三次双周考(11月)数学(理)试题黑龙江省大庆实验中学2018届高三上学期第二次月考数学(理)试题2017届河南省安阳市高三第一次模拟考试数学(理)试卷12017届河南省安阳市高三第一次模拟考试数学(理)试卷2江西省南昌市第二中学2018届高三上学期第四次考试数学(理)试题(已下线)河南省安阳市2017届高三第一次模拟考试数学(文)试题(已下线)专题04 平面向量-【备战高考】2021年高三数学高考复习刷题宝典(压轴题专练)海南省海南华侨中学2022届高三下学期第五次模拟数学试题(已下线)专题12 定比点差法及其应用 微点3 定比点差法综合应用(二)——解决范围、最值、探索型以及存在性问题(已下线)大招20定比分点法
解题方法
7 . 已知
是双曲线
的两个焦点,离心率等于
的椭圆E与双曲线的焦点相同,动点
满足
,曲线M的方程为
.
(1)求椭圆E的方程.
(2)判断直线
与曲线M的公共点的个数,并说明理由;当直线
与曲线M相交时,求直线
截曲线M所得弦长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945611b2bebc85b1cada237f95e1677a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21872d8f6a518e0a2993ccf7a795ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aacde9ab3f18c78f462c7cfb91c3470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f92dd6bb81e24fcafaf269c84cd937c8.png)
(1)求椭圆E的方程.
(2)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86cb619d62d5f4f2dd2fe70628f0d50a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86cb619d62d5f4f2dd2fe70628f0d50a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86cb619d62d5f4f2dd2fe70628f0d50a.png)
您最近一年使用:0次
2020-08-05更新
|
297次组卷
|
4卷引用:第十一届高二试题(A卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
8 . 在直角坐标平面中,△ABC的两个顶点A、B的坐标分别为A(﹣1,0),B (1,0),平面内两点G、M同时满足下列条件:(1)
;(2)
;(3)
∥
,则△ABC的顶点C的轨迹方程为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd53c6f71ded41af06727429f5ad1ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a74a033323379fc80f8d7bce6812b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4024e7bf48255a31fcae839a3e1c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965e6dc2e7c80395aa9068d68060eebe.png)
您最近一年使用:0次
2020-06-12更新
|
226次组卷
|
3卷引用:第十一届高二试题(B卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
第十一届高二试题(B卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)江苏省镇江市丹阳高中、镇江一中、镇江中学三校2020届高三下学期5月调研数学试题(已下线)第41练 曲线与方程-2021年高考数学(理)一轮复习小题必刷
9 . 射线OA的方程是
,射线OB的方程是
,长为
的动线段MN的端点M在OA上移动,端点N在OB上移动,则MN的中点
的轨迹方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585ce757983d44bcd0b30fbf8f865f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce02ede96656abd10ee2c8c6554c6fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ee82573986d4fa6a7ee1b5f397edae.png)
您最近一年使用:0次
解题方法
10 . 已知过原点的所有直线都与椭圆
有两个不同的交点,那么实数k的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3bb3ec1668eb13539252af297d9a65f.png)
A.![]() ![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次