1 . 在平面直角坐标系中,椭圆
的离心率为
,焦距为2.
(1)求椭圆C的方程;
(2)动直线
交椭圆于A、B两点,D是椭圆C上一点,直线OD的斜率为
,且
.T是线段OD延长线上一点,且
,
的半径为
,OP,OQ是
的两条切线,切点分别为P,Q,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fad038d2b0f4007c4e638c40a23e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137f98c6367086cc159aaa5f2e45ee7d.png)
(1)求椭圆C的方程;
(2)动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d56ab9727d7867b8128803e09491f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a425978da20cebf8c4c63953579e7b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97376fa1425a1908f06a9c9c0592b6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42aae960a1203c6c6d92a97d866f032b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b51828f49e9faf002eb44e12076e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7d23d4f032debf57dcb7f40d3c9c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b51828f49e9faf002eb44e12076e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7af49af0bfc51cf112e4aba6e02816.png)
您最近一年使用:0次
2022-10-12更新
|
1136次组卷
|
7卷引用:湖南省长沙市雅礼中学2022-2023学年高二上学期第一次月考数学试题
2022高三·全国·专题练习
名校
解题方法
2 . 已知点
是椭圆
:
上异于顶点的动点,
,
分别为椭圆的左、右焦点,
为坐标原点,
为
的中点,
的平分线与直线
交于点
,则四边形
的面积的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22a3c7e465a61e9849dd223261be47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90c780dac29ff8b7df5881d3b33abab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39ba43cddd6d15bf4ca9ab62b12e98e.png)
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2022-09-19更新
|
1002次组卷
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5卷引用:湖南省常德市第一中学2022-2023学年高二下学期期中数学试题
湖南省常德市第一中学2022-2023学年高二下学期期中数学试题(已下线)专题4 求面积运算(提升版)(已下线)专题41 直线与圆锥曲线-2辽宁省沈阳市东北育才学校2023-2024学年高二上学期期中数学试题(已下线)专题17 圆锥曲线常考压轴小题全归类(16大题型)(练习)
3 . 已知
,直线
的斜率之积为
,记动点
的轨迹为曲线
.
(1)求
的方程;
(2)直线
与曲线
交于
两点,
为坐标原点,若直线
的斜率之积为
, 证明:
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2131aa2bcdaa87dcb17d8b5969c04c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f65dbed884e2248ec075655c684aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
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2022-08-26更新
|
2158次组卷
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11卷引用:湖南省邵阳市第二中学2022-2023学年高三上学期第三次月考数学试题
湖南省邵阳市第二中学2022-2023学年高三上学期第三次月考数学试题湖南师范大学附属中学2023届高三上学期第二次月考数学试题湖南省怀化市2022-2023学年高二下学期期末数学试题湖北省九师联盟2022-2023学年高三上学期8月开学起点考试数学试题辽宁省大连市第八中学2022-2023学年高二上学期期中考试数学试题广东省广州市第十六中学2023届高三上学期12月模拟数学试题河南省南阳市第二完全学校高级中学2022-2023学年高三上学期12月月考数学试题辽宁省沈阳市第三十一中学2022-2023学年高二上学期12月月考数学试卷湖北省十堰市东风高级中学2022-2023学年高三上学期开学考试数学试题(已下线)第26讲 圆锥曲线中定值问题(1)【人教A版(2019)】专题04平面解析几何-高二下学期名校期末好题汇编
解题方法
4 . 如图,直线
与椭圆
相交于
两点,且
的中点为
;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/58bef9ba-6112-4a62-90ae-967d3fcdf9b3.png?resizew=347)
(1)求椭圆的离心率;
(2)若直线
与椭圆相交于
两点,求证:
四点在同一个圆上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec70c15635634679ad4eaccb619df5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bea681006f614f8a070e9c6a942c04.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/58bef9ba-6112-4a62-90ae-967d3fcdf9b3.png?resizew=347)
(1)求椭圆的离心率;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73aa23d5bae655a13ecad8f97505dbe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff2b0577c462dc522d573cb3ef9374c.png)
您最近一年使用:0次
5 . 设A,B分别是直线
和
上的动点,且
,设O为坐标原点,动点G满足
.
(1)求点G运动的曲线C的方程;
(2)直线
与曲线C交于M,N两点,O为坐标原点,当k为何值,
恒为定值,并求此时
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a18f8751aa1008f1e43516a588207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f899446faaf4935179eec468e5943b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd2d9dc6872ed14cc33ce6619c59a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c2edbce7e34726aaeb2bb5da100004.png)
(1)求点G运动的曲线C的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327a8132cb929667c033a3c20bd9c67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4de13a47637548ce5594ed8d64dec0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
您最近一年使用:0次
2022-06-14更新
|
1718次组卷
|
5卷引用:湖南省邵阳市邵东创新实验学校2023-2024学年高二上学期期中数学试题
(已下线)湖南省邵阳市邵东创新实验学校2023-2024学年高二上学期期中数学试题辽宁省渤海大学附属高级中学2022届高三考前测试数学试题(已下线)专题24 圆锥曲线中的存在性、探索性问题 微点2 圆锥曲线中的探索性问题四川省泸县第五中学2022-2023学年高二下学期期中数学(文)试题四川省泸县第五中学2022-2023学年高二下学期期中数学(理)试题
名校
解题方法
6 .
,
是椭圆
:
的左、右顶点,
是椭圆
上位于
轴上方的动点,直线
,
与直线
:
分别交于
,
两点,当
点的坐标为
时,
.
(1)求椭圆
的方程;
(2)记
和
的面积分别为
和
.求
的取值范围.
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c75aceb84fdb65878485f420fe1b1f0c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781e6927e3bc512359dc8b0c11e195d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
2022-06-03更新
|
2507次组卷
|
3卷引用:湖南省邵阳市第二中学2022届高三下学期高考全真模拟考试数学试题
湖南省邵阳市第二中学2022届高三下学期高考全真模拟考试数学试题(已下线)专题6 圆锥曲线硬解定理 微点2 圆锥曲线硬解定理综合训练2023版 湘教版(2019) 选修第一册 过关斩将 第3章 综合拔高练
7 . 若椭圆
与椭圆
满足
,则称这两个椭圆为“相似”,相似比为m.如图,已知椭圆
的长轴长是4,椭圆
的离心率为
,椭圆
与椭圆
相似比为
.
![](https://img.xkw.com/dksih/QBM/2022/5/31/2990843789836288/2991503101706240/STEM/61ca659e-f864-42c2-938e-61f22665c2fa.png?resizew=275)
(1)求椭圆
与椭圆
的方程;
(2)过椭圆
左焦点F的直线l与
、
依次交于A、C、D、B四点.
①求证:无论直线l的倾斜角如何变化,恒有
.
②点M是椭圆
上异于C、D的任意一点,记
面积为
,
面积为
,当
时,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce4bed295af6f04596ef239c3152b5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8384ec6d0cbbba8e5e4d62307e8ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6484bb04ee995fa21bdde034b146707d.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/8d5989c84e320b504511f23eeb6e7357.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/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/2022/5/31/2990843789836288/2991503101706240/STEM/61ca659e-f864-42c2-938e-61f22665c2fa.png?resizew=275)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
①求证:无论直线l的倾斜角如何变化,恒有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88205c21b716db5f264b9ee1b35ab428.png)
②点M是椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9f0296c53918018745f4e3906e2dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1cbf03524f866cc66d019a01e7c4284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d42f61e9f1b59df24f1d43b15044f0.png)
您最近一年使用:0次
名校
解题方法
8 . 已知平面内两点
,动点P满足:
.
(1)求动点P的轨迹C的方程;
(2)设M,N是轨迹C上的两点,直线
与曲线
相切.证明:M,N,
三点共线的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7e26bd228679011198cf33e7b8bcb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc1635ba2e610d4527f2d85a15243da.png)
(1)求动点P的轨迹C的方程;
(2)设M,N是轨迹C上的两点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a3a5b80eccaebc1b070c97a5a6a564e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3834dd00dbca1d1ec6729ddbd8647b.png)
您最近一年使用:0次
解题方法
9 . 已知椭圆
的左、右焦点分别为
,
,P为椭圆上一动点,直线
与圆
相切于Q点,且Q是线段
的中点,三角形
的面积为2.
(1)求椭圆C的方程;
(2)过点P(点P不在x轴上)作圆
的两条切线
、
,切点分别为M,N,直线MN交椭圆C于点D、E两点,求三角形ODE的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec68eeec1d38c8451b3038ab5ff4a74.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/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8a7029669bf1774a24f3ef6273ca88.png)
(1)求椭圆C的方程;
(2)过点P(点P不在x轴上)作圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
您最近一年使用:0次
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解题方法
10 . 设椭圆
的左右焦点分别为
是该椭圆C的右顶点和上顶点,且
,若该椭圆的离心率为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e03e526bee86a144d8e6b648b0314233.png)
(1)求椭圆C的标准方程;
(2)直线l与椭圆C交于
两点,且与x轴交于点
若直线
与直线
的倾斜角互补,求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae13b2a96f91ab64fb4948de2b0ae10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3246fceeda2581b5093d77f9daa81ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bdc3272bcfe1214b7d041718187860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e03e526bee86a144d8e6b648b0314233.png)
(1)求椭圆C的标准方程;
(2)直线l与椭圆C交于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3015eea1309a7cea34438008d082233d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b3bc650f38bb543619aec19da94b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b55f4ca2d21088854e1aeb040fa950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15cce1078f3aa0a452fb89f30ab38c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cd0a769f2f0a7ee797424fb6906aaf4.png)
您最近一年使用:0次
2022-05-28更新
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1823次组卷
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7卷引用:湖南省长沙市雅礼中学2024届高三上学期月考数学试题(四)