1 . 如图,在平面直角坐标系
中,椭圆
过点
,且椭圆的离心率为
.直线
与椭圆
相交于
两点,线段
的中垂线交椭圆
于
两点.
(1)求
的标准方程;
(2)求线段
长的最大值;
(3)证明:
为定值,并求此定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4147f37263dc5cdebcf9d53b758977dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6114947179bed8c2c86ac078e2f8497f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/22/7f289525-4faa-4cdc-a068-567e119b916e.png?resizew=210)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f659607fa095e4a9d8b724b7b01324.png)
您最近一年使用:0次
2023-05-21更新
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631次组卷
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4卷引用:2020届江苏省扬州市高三下学期5月调研测试数学试题
2020届江苏省扬州市高三下学期5月调研测试数学试题江苏省扬州市2020届高三(5月份)高考数学模拟试题(已下线)上海市华东师范大学第二附属中学2023届高三冲刺模拟4数学试题(已下线)重难点突破10 圆锥曲线中的向量问题(五大题型)
2 . 在平面直角坐标系
中,动点
到定点
的距离与动点
到定直线
的距离的比值为
,记动点M的轨迹为曲线C.
(1)求曲线C的标准方程.
(2)若动直线l与曲线C相交于A,B两点,且
(O为坐标原点),求弦长
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b707fdf035eb2fb4467958893c60381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a2878c5fc009fa4ea6ad9038abee9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求曲线C的标准方程.
(2)若动直线l与曲线C相交于A,B两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
您最近一年使用:0次
3 . 已知椭圆
,
,
为左、右焦点,直线
过
交椭圆于
,
两点.
(1)若直线
垂直于
轴,求
;
(2)当
时,
在
轴上方时,求
、
的坐标;
(3)若直线
交
轴于
,直线
交
轴于
,是否存在直线
,使得
,若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c763113a1fc48e8acc83787b8cd24eec.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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd54b527d14c877bed6de7ef490390c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbad65b3d744b70da2480eee1cdb587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/a6481bdb14db168814440057c358b47b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-10-16更新
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806次组卷
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12卷引用:重庆市杨家坪中学2019-2020学年高二上学期第二次月考数学试题
重庆市杨家坪中学2019-2020学年高二上学期第二次月考数学试题(已下线)专题17 圆锥曲线常考题型05——圆锥曲线中的存在性问题与面积问题-【重难点突破】2021-2022学年高二数学上册常考题专练(人教A版2019选择性必修第一册)(已下线)专题31 圆锥曲线存在性问题的五种类型大题100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)(已下线)第13讲 椭圆-3上海市南汇中学2022届高三下学期期中数学试题浙江省杭州市第十四中学2022-2023学年高二下学期阶段性测试(期中)数学试题(已下线)【2023】【高二下】【期中考】【368】【高中数学】【马定超收集】上海市闵行(文绮)中学2023-2024学年高三下学期3月月考数学试卷(已下线)第28题 通性通法为根基,设参变换有妙招(优质好题一题多解)(已下线)专题24 解析几何解答题(文科)-1(已下线)专题24 解析几何解答题(理科)-1上海市闵行(文绮)中学2023-2024学年高三下学期5月月考数学试卷
名校
解题方法
4 . 设椭圆
的左,右焦点分别为
,其离心率为
,且点
在C上.
(1)求C的方程;
(2)O为坐标原点,P为C上任意一点.若M为
的中点,过M且平行于
的直线l交椭圆C于A,B两点,是否存在实数
,使得
?若存在,求
值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e501efaf72113fc8ee3d495004fa980.png)
(1)求C的方程;
(2)O为坐标原点,P为C上任意一点.若M为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d107e77106ff1a9cb76b504bbc99bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79896e6065b6653d41533f0ebb120a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2022-02-21更新
|
797次组卷
|
18卷引用:贵州省贵阳市第一中学2020届高三上学期第三次月考数学(文)试题
贵州省贵阳市第一中学2020届高三上学期第三次月考数学(文)试题宁夏石嘴山市第三中学2019-2020学年高二上学期期末考试数学(理)试题河北省唐山市2019-2020学年高二上学期期末数学试题2020届江西省赣州市赣县三中高三1月考前适应性考试数学(理)试题海南省海南枫叶国际学校2019-2020学年高二上学期期末考试数学试题(已下线)专题05 圆锥曲线中的证明问题、探究性问题(第五篇)-2020高考数学压轴题命题区间探究与突破四川省宜宾市叙州区第二中学校2020届高三第一次高考适应性考试数学(理)试题四川省宜宾市叙州区第二中学校2020届高三第一次高考适应性考试数学(文)试题河北省秦皇岛市抚宁区第一中学2019-2020学年高二上学期期末数学试题(已下线)专题19 圆锥曲线综合-2020年高考数学(理)母题题源解密(全国Ⅱ专版)(已下线)专题19 圆锥曲线综合-2020年高考数学(文)母题题源解密(全国Ⅱ专版)西藏山南市第二高级中学2020届高三第三次模拟考试数学(文)试题西藏山南市第二高级中学2020届高三第三次模拟考试数学(理)试题广西桂林市2021-2022学年高二上学期期末考试数学(理)试题(已下线)解密18 椭圆 (讲义)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)(已下线)专题29 弦长问题及长度和、差、商、积问题-2第三章 圆锥曲线的方程单元测试(基础版)-【新教材优创】突破满分数学之2022-2023学年高二数学重难点突破+课时训练 (人教A版2019选择性必修第一册)江西省南昌市铁路第一中学2022-2023学年高二下学期3月月考数学试题
名校
解题方法
5 . 已知椭圆
:
的离心率为
,点
在椭圆
上,直线
过椭圆
的右焦点与上顶点,动直线
:
与椭圆
交于
,
两点,交
于
点.
(1)求椭圆
的方程;
(2)已知
为坐标原点,若点
满足
,求此时
的长度.
![](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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e90064d012356de1877aa697cd6d6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.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/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f4177629bd62c3cbbcf2158c9871d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2020-11-21更新
|
474次组卷
|
6卷引用:广东省佛山市2019-2020学年高三教学质量检测(一)数学理科试题
名校
解题方法
6 . 已知离心率为
的椭圆
过点
.
(1)求椭圆
的方程;
(2)过点
作斜率为2直线
与椭圆相交于
,
两点,求
的长;
(3)过点
的直线
与椭圆相交于
,
两点,求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9b4a5f5334c153ddbefc763d8939ef.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/aaff41080fdea43eea7efedf9ebc1498.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
您最近一年使用:0次
2020-11-07更新
|
953次组卷
|
2卷引用:北京实验学校(海淀)2019-2020 学年度高二下学期期末考试数学试题
7 . 已知椭圆
的左焦点为
,其四个顶点围成的四边形面积为
.
(1)求曲线E的方程;
(2)过点F的直线l与曲线E交于A,B两点,设AB的中点为M,C、D两点为曲线E上关于原点O对称的两点,且
,求四边形ACBD面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e1a85a657231ef717809d5a839ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
(1)求曲线E的方程;
(2)过点F的直线l与曲线E交于A,B两点,设AB的中点为M,C、D两点为曲线E上关于原点O对称的两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68a772d5f6bc623f3978f96a9749689.png)
您最近一年使用:0次
2020-10-21更新
|
895次组卷
|
3卷引用:湖北省武汉市五校联合体2019-2020学年高二下学期期末数学试题
解题方法
8 . 已知椭圆
的左,右焦点分别为
,
,若椭圆经过点
,且
的面积为2.
(1)求椭圆
的标准方程;
(2)设斜率为1的直线
与圆
交于
,
两点,与椭圆
交于
,
两点,且
,当
取得最小值时,求直线
的方程并求此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef6b94e42869013745050aba059b58dd.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/7088f97b4938242430afb2ee427325ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设斜率为1的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4db3f2ee257a044c6307b3a1f495fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](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/ac133c134cf790259a7b740d58a43bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2020-08-15更新
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5卷引用:陕西省西安市2020届高三下学期第二次质量检测理科数学试题
陕西省西安市2020届高三下学期第二次质量检测理科数学试题陕西省西安市2020届高三下学期第二次质量检测文科数学试题专题2.7 平面解析几何(B卷提升篇)-2020-2021学年高二数学选择性必修第一册同步单元AB卷(新教材人教B版)(已下线)3.1 椭圆(难点)(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)四川省成都市简阳市阳安中学2022-2023学年高二下学期期中考试数学(理)试题
名校
解题方法
9 . 已知椭圆
的左、右焦点分别为
,
,
,离心率为
.
(1)若
为椭圆
上任意一点,且横坐标为
,求证:
;
(2)不经过
和
的直线
与以坐标原点为圆心,短半轴为半径的圆相切,且与椭圆
交于
,
两点,试判断
的周长是否为定值,若是,求出定值;若不是,请说明理由.
![](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/13683e2ecf2164a0adbfdb9923d210a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)若
![](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/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0369442e8fbad10914e00c6c0040ec.png)
(2)不经过
![](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/b93cf4a69bbd3bda95180fa576d7e110.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/e19e695795d6c124955e2c6ec0b46056.png)
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2020-08-10更新
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2卷引用:湖北省鄂东南教改联盟学校2019-2020学年高二下学期期中联考数学试题
10 . 已知点F是抛物线
和椭圆
的公共焦点,
是
与
的交点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/dc8b6f61-73a6-471b-99ac-5bfe9fb80ece.png?resizew=194)
(1)求椭圆
的方程;
(2)直线
与抛物线
相切于点
,与椭圆
交于
,
,点
关于
轴的对称点为
.求
的最大值及相应的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8a3bffe545af2299cf999d44767206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1f5a9c4d3c70e4b542d7632ae42e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/1448a3daab02d12282f025371b5c4791.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/dc8b6f61-73a6-471b-99ac-5bfe9fb80ece.png?resizew=194)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122c494d7102700392e2ec6d478b9109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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