名校
解题方法
1 . 已知椭圆
的两个焦点分别是
,其长轴长是短轴长的2倍,P为椭圆上任意一点,且
的面积最大值为
.
(1)求椭圆M的方程;
(2)设直线l与椭圆M交于A,B两点,且以线段
为直径的圆过椭圆的右顶点C,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求椭圆M的方程;
(2)设直线l与椭圆M交于A,B两点,且以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-07-24更新
|
1176次组卷
|
6卷引用:浙江省嘉兴市第五高级中学2021-2022学年高二上学期12月月考数学试题
浙江省嘉兴市第五高级中学2021-2022学年高二上学期12月月考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(已下线)3.1椭圆(专题强化卷)-2021-2022学年高二数学课堂精选(人教A版2019选择性必修第一册)贵州省贵阳市第一中学2021届高三下学期高考适应性月考卷(五)数学(理)试题贵州省贵阳市第一中学2021届高三下学期高考适应性月考卷(五)数学(文)试题吉林省长春市东北师大附中2022届高三第二次摸底考试数学(理)试题
解题方法
2 . 已知椭圆C的右焦点为
,点A为椭圆C的上顶点,过点F与x轴垂直的直线与椭圆C相交于P,Q两点,且
.
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)若直线l的倾斜角为
,且与椭圆C交于M,N两点,问是否存在这样的直线l使得
?若存在,求l的方程;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dabc903151d7161c17e33706daf1871.png)
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)若直线l的倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0168db361b7f0f08243088aed2613425.png)
您最近一年使用:0次
2021-07-23更新
|
356次组卷
|
5卷引用:浙江省金华市义乌市商城学校2021-2022学年高二上学期12月月考数学试题
浙江省金华市义乌市商城学校2021-2022学年高二上学期12月月考数学试题河南省名校联盟2020-2021学年高二下学期期末考试数学(文科)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)第三章 圆锥曲线与方程单元测试-2021-2022学年高二数学同步精品课堂讲+例+测(苏教版2019选择性必修第一册)(已下线)第3章 圆锥曲线的方程【单元提升卷】-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
名校
解题方法
3 . 已知直线
:
与椭圆
:
(
)相交于
,
两点,
为坐标原点,椭圆
的一个焦点为
,
中点为
.
(1)求椭圆
的方程;
(2)若
,
为椭圆
上任意两点,满足
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1389d58dea279700baffb3233251ce01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055a2ef09e2ee0948cf67c58de58732d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e5b56700a970907a3dd29aff1897ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374ec0034dd913040dc8e1beb72f311b.png)
您最近一年使用:0次
2021-07-21更新
|
806次组卷
|
3卷引用:浙江省杭州市第十四中学康桥校区2020-2021学年高二下学期期中数学试题
浙江省杭州市第十四中学康桥校区2020-2021学年高二下学期期中数学试题福建省福州格致中学2022届高三10月月考数学试题(已下线)第十一章 圆锥曲线专练6—椭圆大题(面积最值问题1)-2022届高三数学一轮复习
名校
解题方法
4 . 设O是坐标原点,以
为焦点的椭圆
的长轴长为
,以
为直径的圆和C恰好有两个交点,
(1)求C的方程;
(2)P是C外的一点,设其坐标为
,过P的直线
均与C相切,且的斜率
之积为
,记u为
的最小值,求u的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92399b40cb5913b0d3e2d5d2f540c76d.png)
(1)求C的方程;
(2)P是C外的一点,设其坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24c904b72b2c2c971e4d5a91d9c34b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598b150b60b7e443f7f9a214824973b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186b089ab7f74d2b92ee9b556e5e3ca8.png)
您最近一年使用:0次
2021-07-15更新
|
954次组卷
|
10卷引用:浙江省杭州市学军中学2021-2022学年高二上学期期中数学试题
浙江省杭州市学军中学2021-2022学年高二上学期期中数学试题福建省厦门一中2020-2021学年高二下学期期中考试数学试题(已下线)专题14 圆锥曲线的综合问题 - 2021-2022高二上学期数学新教材配套提升训练(人教A版2019选择性必修第一册)湖北省鄂东南省级示范高中教育教学改革联盟学校2021-2022学年高二上学期期中联考数学试题广东省深圳市2021届高三一模数学试题(已下线)专题1.8 圆锥曲线-椭圆-2021年高考数学解答题挑战满分专项训练(新高考地区专用)(已下线)黄金卷18-【赢在高考·黄金20卷】备战2021年高考数学全真模拟卷(山东高考专用)(已下线)解密17 椭圆(分层训练)-【高频考点解密】2021年高考数学(文)二轮复习讲义+分层训练福建省厦门第一中学2020-2021学年高二下学期期中数学试题(已下线)专题35 双切线问题的探究-1
5 . 椭圆
:
的焦距为2,椭圆
上一点
.不过原点
的直线
与椭圆
相交于
,
两点,若抛物线
:
的焦点是椭圆的右焦点.
![](https://img.xkw.com/dksih/QBM/2021/6/1/2733223322804224/2760278163365888/STEM/abb4d90c-593d-40c4-9be5-7dbd49092e08.png?resizew=227)
(1)求椭圆
与抛物线
的方程;
(2)若线段
的长度为
.求
面积
的取值范围.
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7401bce743d857c2f89f49dfe434769f.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/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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://img.xkw.com/dksih/QBM/2021/6/1/2733223322804224/2760278163365888/STEM/abb4d90c-593d-40c4-9be5-7dbd49092e08.png?resizew=227)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
20-21高二下·浙江·期末
解题方法
6 . 如图,设A、B是椭圆
的左、右顶点,
,过右焦点F的直线交椭圆C于点M,N,交直线
于点P,且直线
的斜率成等差数列.
![](https://img.xkw.com/dksih/QBM/2021/6/2/2734567781433344/2734847521112064/STEM/603486df17ba46a28a8dd1ede9cd4ff5.png?resizew=202)
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)记
,
的面积分别为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe8686b28e18331575ad8e1c70d6512.png)
![](https://img.xkw.com/dksih/QBM/2021/6/2/2734567781433344/2734847521112064/STEM/603486df17ba46a28a8dd1ede9cd4ff5.png?resizew=202)
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4b0c4b339f44bbac0e275eb0718234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a4b4ad9535629b699b7429996484a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
20-21高二下·浙江·期末
解题方法
7 . 已知椭圆
的离心率为
,且过点
.
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)若过点
的直线l交椭圆C于不同的两点M,N,求
(O为坐标原点)的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
(Ⅰ)求椭圆C的标准方程;
(Ⅱ)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173ffa0c1821a4817d499a541644815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
您最近一年使用:0次
8 . 已知
,
是椭圆
的左、右焦点,动点
在椭圆上,且
的最小值和最大值分别为1和3.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/773dbed5-1361-4c57-9aad-e52c65037404.png?resizew=202)
(1)求椭圆的标准方程;
(2)动点
在抛物线
上,且在直线
的右侧.过点
作椭圆
的两条切线分别交直线
于
,
两点.当
时,求点
的坐标.
![](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/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ef569668e797b1e94257fd5f4384dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/773dbed5-1361-4c57-9aad-e52c65037404.png?resizew=202)
(1)求椭圆的标准方程;
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e3c15d116fb61f236ab239c50b114.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/e48867e261c61d24a0a1a4f7ff4627c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2021-05-28更新
|
817次组卷
|
5卷引用:第三章 (综合培优)圆锥曲线的方程 B卷-【双基双测】2021-2022学年高二数学同步单元AB卷(浙江专用)(人教A版2019选择性必修第一册)
第三章 (综合培优)圆锥曲线的方程 B卷-【双基双测】2021-2022学年高二数学同步单元AB卷(浙江专用)(人教A版2019选择性必修第一册)浙江省丽水、湖州、衢州三地市2021届高三下学期4月教学质量检测数学试题(已下线)专题11.平面解析几何(解答题)-《2022届复习必备-2021届浙江省高考冲刺数学试卷分项解析》(已下线)第3章 圆锥曲线的方程【单元提升卷】-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)(已下线)专题21 圆锥曲线综合-备战2022年高考数学(理)母题题源解密(全国乙卷)
21-22高二上·浙江·期末
解题方法
9 . 已知e为椭圆
的离心率,且点
均在椭圆上.
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715477843197952/2715713161969664/STEM/608d701c-377c-424e-b762-1ab579cc5c63.png?resizew=280)
(Ⅰ)求椭圆方程;
(Ⅱ)如图,
分别为椭圆的左右焦点,点A在椭圆上,直线
分别与椭圆交于B,C两点,直线
交于点D,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cea96a05a40395fa899934e4cab5f37.png)
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715477843197952/2715713161969664/STEM/608d701c-377c-424e-b762-1ab579cc5c63.png?resizew=280)
(Ⅰ)求椭圆方程;
(Ⅱ)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1259e8ef4ab3b926cf28980217127f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c85d9f459d0aa0be486b33244ffc7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b389ce59ceb7e4550059931c37e805d4.png)
您最近一年使用:0次
21-22高二上·浙江·期末
解题方法
10 . 已知椭圆
,点
为椭圆上的点,长轴
,D,C为椭圆的上,下顶点,直线
交椭圆于M,N(点M在点N左侧,且M与C不重合).
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715478340091904/2715709847519232/STEM/19f917f8-8bc3-47c7-b882-6cb6cab88c75.png?resizew=275)
(1)求椭圆方程.
(2)求证:直线
的倾斜角互补;
(3)记
的斜率为
,
的斜率为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bfa5840675e634a9f5e1f602775e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db0501ffb1765ac5b4d291c52e1c399b.png)
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715478340091904/2715709847519232/STEM/19f917f8-8bc3-47c7-b882-6cb6cab88c75.png?resizew=275)
(1)求椭圆方程.
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec8858389f4c3156a946ba8bf0d8a7b.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884b508394b3ab50734b584d9ec783c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0a8cfb3747c454e0698e12857ffae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
您最近一年使用:0次