解题方法
1 . 已知直线
与直线
垂直,其纵截距为
,椭圆C的两个焦点为
,且与直线
相切.
(1)求直线
和椭圆C的方程;
(2)过点
作两条互相垂直的直线
,与椭圆分别交于P,Q及M,N,求四边形
面积的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d58c2daeaef17097a55cb034c72fe68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531322f8ec2d4d27f8cc421ee67e7d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,椭圆
(
)的离心率为
,其短轴和长轴的端点分别为A,B,C,D,且
.
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134451182362624/3134861796286464/STEM/091444bd2e9448c28c13d8f0a112124e.png?resizew=511)
(1)求椭圆的方程;
(2)P是椭圆上位于x轴上方的动点,直线
,
与直线l:
分别交于G、H两点.若
,求点P的坐标;
(3)直线
,
分别与椭圆交于E,F两点,其中点
满足
且
.若
面积是
面积的5倍,求t的值.
![](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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f371c0b1d573c06516ab1904d95ee49f.png)
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134451182362624/3134861796286464/STEM/091444bd2e9448c28c13d8f0a112124e.png?resizew=511)
(1)求椭圆的方程;
(2)P是椭圆上位于x轴上方的动点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e1e5a89003de4fda1dcf41565a9057.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba1b211aa0cb973622f3031462ad8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823ab696d27d40920c39b8c910789380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb14f5a795eb84d125e5f82e73fdbb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918db766afc11101b1e4584fcf6881f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f7c63d03656e40f914486ddf22de4.png)
您最近一年使用:0次
2022-12-20更新
|
378次组卷
|
2卷引用:天津市第四十七中学2021-2022学年高二上学期第二次月考数学试题
名校
解题方法
3 . 已知椭圆
:
,
,
是左右焦点,且直线
过点
(
)交椭圆
于
,
两点,点
,
在
轴上方,点
在线段
上.
(1)若
为上顶点,
,求
的值;
(2)若
,原点
到直线
的距离为
,求直线
的方程;
(3)对于任意点
,是否存在唯一的直线
,使得
,若存在,求出直线
的斜率,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c7ea827c663d1b329222278a7c84268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a47abc50f3effce1185d73f70f28652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaed407a4ac1164ce48e736c76302ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0f3f5d9a4dfe6119d1b68b60fb8e58.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/c95b29a11aa9eec39c6d9ae63985e3ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)对于任意点
![](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/7c227e35b0571fa2906add0aa2d002bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-11-10更新
|
597次组卷
|
5卷引用:湖南师范大学附属中学2021-2022学年高二上学期第二次大练习数学试题
湖南师范大学附属中学2021-2022学年高二上学期第二次大练习数学试题福建省三校联考2022-2023学年高二上学期期中考试数学试题上海市曹杨第二中学2022-2023学年高二下学期3月月考数学试题(已下线)重组卷01(已下线)2023年北京高考数学真题变式题16-21
名校
解题方法
4 . 已知椭圆
的长轴长是短轴长的2倍,焦距是
.
(1)求椭圆C的方程;
(2)若直线l:
与椭圆C交于两个不同点D,E,以线段
为直径的圆经过原点,求实数
的值;
(3)设A,B为椭圆C的左、右顶点,
为椭圆C上除A,B外任意一点,线段
的垂直平分线分别交直线
和直线
于点P和点Q,分别过点P和Q作
轴的垂线,垂足分别为M和N,求证:线段MN的长为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求椭圆C的方程;
(2)若直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67e4b79aaab10cccde470d408ec9f0f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设A,B为椭圆C的左、右顶点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2022-04-14更新
|
447次组卷
|
5卷引用:北京市大兴区2020-2021学年度高二上学期期末检测试卷数学试题
解题方法
5 . 已知点
及圆
,点P是圆B上任意一点,线段
的垂直平分线l交半径
于点T,当点P在圆上运动时,记点T的轨迹为曲线E.
(1)求曲线E的方程;
(2)设存在斜率不为零且平行的两条直线
,
,它们与曲线E分别交于点C、D、M、N,且四边形
是菱形,求该菱形周长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6ff81aedbefa935da289dc632e78eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8228ee5dd192c77620eda9b6d01ede1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
(1)求曲线E的方程;
(2)设存在斜率不为零且平行的两条直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515f2668c6ab5e6d0679218ea9c8e4be.png)
您最近一年使用:0次
6 . 已知椭圆
的左右焦点为
,
,
是椭圆上半部分的动点,连接
和长轴的左右两个端点所得两直线交
轴的正半轴于A,
两点
点A在
的上方或重合
.
(1)当
时,若B是线段OA的中点,求直线MA的方程;
(2)当
面积
最大时,求椭圆的方程;
(3)当
时,在
轴上是否存在点
使得
为定值,若存在,求
点的坐标,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1a5780b14053aa30c357d1316b4840.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71812e0762c0aaffb51cfef66156567.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73a483bf16151a9de6c6e651fa22f9b.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbad2b0ee693c245dcb51041dd07942b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
7 . 已知椭圆
的右焦点为
,离心率为
,点
在椭圆上且位于第二象限,直线
被圆
截得的线段的长为
.
(1)求直线
的斜率;
(2)当
时,①求该椭圆的方程;②设动点
在椭圆上,若直线
的斜率小于
,求直线
(
为原点)的斜率的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b881b048b1a0e323593df274e41067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb8ab1c969ee3eb220d2ea7990cf926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2293f93791a597bf0162411f3395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
21-22高二·江苏·单元测试
解题方法
8 . 已知圆
,点
,点Q在圆
上运动,
的垂直平分线交
于点P.
(1)求动点P的轨迹的方程C;
(2)设
分别是曲线C上的两个不同点,且点M在第一象限,点N在第三象限,若
,O为坐标原点,求直线MN的斜率;
(3)过点
的动直线l交曲线C于
两点,在y轴上是否存在定点T,使以AB为直径的圆恒过这个点?若存在,求出点T的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4463d26d5bb4a96f11cffdfa2aad480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16c755ab3fea6ca99b13193a5d7e485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c30a7506331e47342fb1e7d2e12d041.png)
(1)求动点P的轨迹的方程C;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12967e4f8c1e2e29c1999caa62f79b71.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6831c6674f4bf86df7c8dd730e1c187d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
您最近一年使用:0次
9 . 已知椭圆
:
离心率为
,过右焦点
的直线交椭圆
于椭圆
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/7eb5091c-9571-41ce-93ba-50c8d9e3727c.png?resizew=198)
(1)若有
,求直线
的方程;
(2)若线段
的中点为
,延长
交椭圆于另一个交点
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12b3f8f212497992d9edd617472a8ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8661c9b100f157e07b962cac16e68df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/7eb5091c-9571-41ce-93ba-50c8d9e3727c.png?resizew=198)
(1)若有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a9a49dc8499d6c3b73d633e20b9757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7ad41b36674fd6e90176ee24cdefbb.png)
您最近一年使用:0次
2021-12-23更新
|
737次组卷
|
5卷引用:浙江省北斗星盟2021-2022学年高二上学期12月阶段性联考数学试题
浙江省北斗星盟2021-2022学年高二上学期12月阶段性联考数学试题浙江省舟山中学2021-2022学年高三上学期12月月考数学试题浙江省湖州市安吉县外国语学校2022-2023学年高二上学期第一次月考数学试题安徽省滁州市定远县民族中学2022-2023学年高二下学期开学考试数学试题(已下线)专题10.5—圆锥曲线—椭圆大题(面积最值问题)—2022届高三数学一轮复习精讲精练
名校
10 . 若直线y=kx+1与焦点在x轴上的椭圆
总有公共点,则实数m的取值范围为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e030e40306ef61056e68956d0fbcef.png)
您最近一年使用:0次
2021-12-04更新
|
638次组卷
|
9卷引用:陕西师范大学附属中学2021-2022学年高二上学期10月第一次月考文科数学试题
陕西师范大学附属中学2021-2022学年高二上学期10月第一次月考文科数学试题河南省驻马店市新蔡县第一高级中学2021-2022学年高二上学期12月月考数学(理科)试题上海外国语大学附属浦东外国语学校2022-2023学年高二下学期期末数学试题3.1 椭圆北师大版(2019) 选修第一册 数学奇书 第二章 圆锥曲线 §4 直线与圆锥曲线的位置关系 4.1 直线与圆锥曲线的交点北师大版(2019) 选修第一册 数学奇书 学业评价(二十一) 直线与圆锥曲线的交点(已下线)3.1.2 椭圆的简单几何性质【第一课】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)上海市高二下学期期末真题必刷03(常考题)--高二期末考点大串讲(沪教版2020选修)(已下线)第13讲 抛物线(9大考点)(1)