名校
解题方法
1 . 已知椭圆
的一个顶点为
,离心率为
.
(1)求椭圆的标准方程;
(2)在直线
上任取一点
,设长轴上的两个顶点为
,连接
分别交椭圆于
两点,证明:直线
的交点在直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb223b8777ab973970491bf0dcc6806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23a03ca8f1729bfcadf513784817fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆的标准方程;
(2)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6280959e386eed67ce5d6f8da5dcdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03df57efff473b3cfeb8503796b7d6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b971ff1b6f62b36cf0b9a641fc419458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6280959e386eed67ce5d6f8da5dcdc.png)
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
的离心率为
,椭圆
的动弦
过椭圆
的右焦点
,当
垂直
轴时,椭圆
在
处的两条切线的交点为
.
(1)求点
的坐标;
(2)若直线
的斜率为
,过点
作
轴的垂线
,点
为
上一点,且点
的纵坐标为
,直线
与椭圆
交于
两点,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069ffc1e3936d254303d588e1a70a3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a60e77043cfa243c212f9e340c5f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f43b5d69bd0a55499a8d70bf88077f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360496a4f5cc8a5faca5e089ae4f9531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769e7e506800af0ce9e6ecdc15fe4459.png)
您最近一年使用:0次
解题方法
3 . 在平面直角坐标系
中,椭圆
的右焦点为
,右准线
与
轴交于点
.点
是右准线
上的一个动点(异于点
),过点
作椭圆
的两条切线,切点分别为
.已知
.
(1)求椭圆
的标准方程;
(2)设直线
的斜率分别为
,直线
的斜率为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7481e14332e8f87515db53ebc5fc630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5bb9d2204b366da605e989c4153819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070cb22ade65e794ca9b68bf3992f791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453acc0f502e29fabbe5676624ef2260.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed1e9cdd5a82f29ec89b2c53b4fa6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4602fefda18bd0764dfb40e60e36acd3.png)
您最近一年使用:0次
名校
解题方法
4 . 如图,椭圆
,圆
,椭圆C的左、右焦点分别为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/2/982fcc91-40c1-4c1c-b1b5-68f7cb1b5d18.png?resizew=179)
(1)过椭圆上一点P和原点O作直线l交圆O于M,N两点,若
,求
的值;
(2)过圆O上任意点R引椭圆C的两条切线,求证:两条切线相互垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cec1069311f0b48631d43524215250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fa27fccbb61045fb30f50c7b271082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/2/982fcc91-40c1-4c1c-b1b5-68f7cb1b5d18.png?resizew=179)
(1)过椭圆上一点P和原点O作直线l交圆O于M,N两点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac31e98551e5b14307482844b78c5498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e177345aea68c21205d3ff3107eb1f03.png)
(2)过圆O上任意点R引椭圆C的两条切线,求证:两条切线相互垂直.
您最近一年使用:0次
名校
5 . 如图,已知椭圆
的方程为
,
,
,
,点
是椭圆
上任一点,
是以
为直径的圆.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/91d45fac-4924-45bc-834d-a217ed9036c9.png?resizew=205)
(1)当
的面积为
时,求
所在直线的方程;
(2)当
与直线
相切时,求
的方程;
(3)求证:
总与某个定圆相切.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71885f023172807ad43f2c9a670aa960.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/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/91d45fac-4924-45bc-834d-a217ed9036c9.png?resizew=205)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e24f048f9a87274863ba2c037d7a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
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名校
解题方法
6 . 已知椭圆
的左、右顶点分别为A,B.直线l与C相切,且与圆
交于M,N两点,M在N的左侧.
(1)若直线l的斜率
,求原点O到直线l的距离;
(2)记直线AM,BN的斜率分别为
,
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
(1)若直线l的斜率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
(2)记直线AM,BN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/b4757181824e15e0f21e5bdd55448783.png)
您最近一年使用:0次
2023-04-15更新
|
606次组卷
|
4卷引用:广东省广州市天河区2023届高三三模数学试题
名校
解题方法
7 . 已知点
在圆
上,
,
的坐标分别为
,
,线段
的垂直平分线交线段
于点
.
(1)求点
的轨迹
的方程;
(2)
为曲线
上不同于
的两点,直线
分别经过点
,求证:直线
与直线
的斜率之积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02c66e89fbb623bba218b16b3672a79c.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/bc6554ac3dff4a59833e407db887f6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.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/492bc7bd2cbc751d2f6d2c77ec74268a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2023-05-28更新
|
400次组卷
|
2卷引用:河南省实验中学2023届高三模拟考试四文科数学试题
8 . 已知椭圆
的焦距为2,离心率为
如图,在矩形ABCD中,
,
,E,F,G,H分别为矩形四条边的中点,过E做直线交x轴的正半轴于R点,交椭圆于M点,连接GM交CF于点T
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/6821999f-b323-4574-9616-d69ef6f9c49d.png?resizew=164)
(1)求椭圆的标准方程;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad51c072fc094bae0e45c1d1cc174823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c7f6fca0cb9ee43e61cdc8f63ef8d51.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/6821999f-b323-4574-9616-d69ef6f9c49d.png?resizew=164)
(1)求椭圆的标准方程;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e0fb1dac3d81b4613a751263402a0c.png)
您最近一年使用:0次
名校
解题方法
9 . 已知椭圆
与直线
交于
两点,且当
时,
.
(1)求椭圆
的标准方程;
(2)记椭圆
的上、下顶点分别为
,若点
在直线
上,证明:点
在直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d5b538dbc0d6d7aca647794be954b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e54f1982d11594ab45d6fd819d7e798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba9dea5d7ecc8af9fc5ffbe575351467.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)记椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270fda5e22e008d0f105ca1a725bb922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2790947716b1cfa9c5e7a65db4093.png)
您最近一年使用:0次
2023-03-19更新
|
330次组卷
|
2卷引用:广西部分学校2023届高三二轮复习阶段性测试数学(理)试题
10 . 已知椭圆
的左、右顶点分别为A,B.直线l与C相切,且与圆
交于M,N两点,M在N的左侧.
(1)若
,求l的斜率;
(2)记直线
的斜率分别为
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812af758672db7576ad2a72eb1061248.png)
(2)记直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e4d7503a7d57ba242ad4e05c7006a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
您最近一年使用:0次
2023-03-09更新
|
1067次组卷
|
3卷引用:福建省泉州市2023届高三数学质量监测试题(三)