名校
1 . 已知
,
是椭圆
上的动点,
是线段
上的点,且满足
,则动点
的轨迹方程是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8db488c2dca549b5886092f1e35dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f11a232b0a44a2eadda5fb90b1793e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d16cabe6150fc92447c6fa8d6a713d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2019-10-25更新
|
1412次组卷
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5卷引用:江西省吉安市第一中学2019-2020学年高二上学期10月月考数学试题
江西省吉安市第一中学2019-2020学年高二上学期10月月考数学试题安徽省铜陵市枞阳县浮山中学2019-2020学年高二上学期期中数学(理)试题四川省遂宁市第二中学校2019-2020学年高二下学期期中考试数学试题(已下线)【南昌新东方】江西省南昌一中2020-2021学年高二上学期10月第一次月考数学(理)试题辽宁省辽东教学共同体2023-2024学年高二上学期期中联合考试数学试题
名校
2 . 已知抛物线
:
的焦点
也是椭圆
:
的焦点,记
与
在第一象限内的交点为
,且
,则椭圆离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48f28aeccf369df5980ac787e9e313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b26feeb6a7f7afe9821cbf3d0fcc837.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b059953265c17fd38adcb5ff24de4a.png)
A.![]() | B.![]() | C.![]() | D.3 |
您最近一年使用:0次
2019-06-25更新
|
158次组卷
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2卷引用:2019年湖南省怀化市第三次模拟数学(理)试题
名校
3 . 已知椭圆
的左、右焦点分别为
,且
,
是椭圆上一点.
(1)求椭圆
的标准方程和离心率
的值;
(2)若
为椭圆
上异于顶点的任一点,
、
分别为椭圆的右顶点和上顶点,直线
与
轴交于点
,直线
与
轴交于点
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf1a02bd1f06cf451aa53467f7102e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950e6108856cfb8d45b1a1e6aa6900e9.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/2a354c472e3de0d03a4d288bb7b62a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77ce31833750a319b3c2db7837a110d.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/2867d22611f48131887c1124b73d452b.png)
您最近一年使用:0次
2019-06-15更新
|
761次组卷
|
3卷引用:江西省上饶市横峰中学2018-2019学年高二下学期第三次月考数学(理)试题
江西省上饶市横峰中学2018-2019学年高二下学期第三次月考数学(理)试题江西省新干中学2022-2023学年高二上学期期末考试数学试题(已下线)第五篇 向量与几何 专题7 共轭直径微点1 共轭直径(一)
10-11高一下·江西吉安·期中
名校
4 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
的右焦点为
,离心率为
.
(1)求椭圆
的方程;
(2)设过点
的直线
交椭圆
于
,
两点,若
(
为坐标原点)的面积为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-05-09更新
|
3318次组卷
|
16卷引用:2010-2011年江西省安福中学高一下学期期中考试数学
(已下线)2010-2011年江西省安福中学高一下学期期中考试数学(已下线)2010~2011学年河北省邯郸市重点中学高一下学期期末考试数学试题(已下线)2012届江苏省扬州市安宜高级中学高三上学期期初测试数学【市级联考】广东省汕头市2019届高三第二次模拟考试(B卷)数学(文)试题河北省石家庄市第二中学2019-2020学年高二10月月考数学试题江西省宜春市靖安县2019-2020学年高二上学期第二次月考数学(文)试题四川省成都市蓉城名校联盟2019-2020学年高二上学期期末联考共性化练习数学(文)试题四川省成都市蓉城名校联盟2019-2020学年高二上学期期末联考共性化练习数学(理)试题(已下线)专题05 解析几何中的与三角形面积相关的问题(第五篇)-备战2020年高考数学大题精做之解答题题型全覆盖福建省泉州市永春一中2019届高三高考数学(文)前适应性试题江西省靖安中学2019-2020学年高二上学期第二次月考数学(文)试题四川省眉山市第一中学2020-2021学年高二上学期12月月考文科数学试题黑龙江省实验中学2021-2022学年高二上学期期中数学试题浙江省台州市书生中学2021-2022学年高二上学期第二次月考数学试题河北省邯郸市永年区第二中学2022-2023学年高二上学期12月月考数学试题广东省江门市第一中学2023-2024学年高二上学期第二次学段考试数学试题
5 . 已知椭圆
与圆
:
有且仅有两个公共点,点
、
、
分别是椭圆
上的动点、左焦点、右焦点,三角形
面积的最大值是
.
(1)求椭圆
的方程;
(2)若点
在椭圆第一象限部分上运动,过点
作圆
的切线
,过点
作
的垂线
,求证:
,
交点
的纵坐标的绝对值为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6272593f00b7e1293855f2aa7941a46d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49137970108f50350a3211aa0281faaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5a8e1bc9748e5519dcd9981b7eb251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](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/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
名校
解题方法
6 . 已知椭圆
的左焦点为
,
是椭圆上关于原点
对称的两个动点,当点
的坐标为
时,
的周长恰为
.
(1)求椭圆的方程;
(2)过点
作直线
交椭圆于
两点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f9e88d36e731318cf9b61f9314d550.png)
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1a9128bfafd2756206e4603126f077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b929a31d169a811004f0ecd6b7984e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86391dc521a0d9de2a6e08ed04a9ac63.png)
(1)求椭圆的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f9e88d36e731318cf9b61f9314d550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d3b8555a8c346eacd2fe75d9d7e948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
您最近一年使用:0次
2019-05-07更新
|
1886次组卷
|
9卷引用:【市级联考】福建省宁德市2019届高三毕业班第二次(5月)质量检查考试数学理试题
【市级联考】福建省宁德市2019届高三毕业班第二次(5月)质量检查考试数学理试题2019届福建省宁德市高三质量检查数学(理)试题2020届甘肃省天水市第一中学高三下学期诊断考试数学(文)试题2020届甘肃省天水市第一中学高三下学期诊断考试数学(理)试题(已下线)专题04 圆锥曲线中的最值、范围问题(第五篇)-2020高考数学压轴题命题区间探究与突破(已下线)专题08 解析几何中的最值范围问题(第五篇)-备战2020年高考数学大题精做之解答题题型全覆盖(已下线)理科数学-2020年高考押题预测卷01(新课标Ⅲ卷)《2020年高考押题预测卷》江西省吉安市白鹭洲中学2020-2021学年高二12月月考数学试题江西省遂川中学2021-2022学年高二上学期第三次月考数学(理)试题(A卷)
名校
解题方法
7 . 以椭圆
的离心率为
,以其四个顶点为顶点的四边形的面积等于
.
1
求椭圆
的标准方程;
2
过原点且斜率不为0的直线
与椭圆
交于
两点,
是椭圆
的右顶点,直线
分别与
轴交于点
,问:以
为直径的圆是否恒过
轴上的定点?若恒过
轴上的定点,请求出该定点的坐标;若不恒过
轴上的定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842cde52e50166d6ef54f450efbaf776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc860cece09bffcc2593dc7b11aee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb57575dea540c569265de158429425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2019-04-16更新
|
557次组卷
|
7卷引用:2016届江西吉安一中高三三模考试数学(理)试卷
8 . 已知椭圆
:
的离心率为
,且经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31507b723f96af7d0cb9ec0c6337b0.png)
Ⅰ
求椭圆
的标准方程;
Ⅱ
已知抛物线
的焦点与椭圆
的右焦点重合,过点
的动直线与抛物线
相交于A,B两个不同的点,在线段AB上取点Q,满足
,证明:点Q总在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78c38805c09dcfbcc42103308975a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31507b723f96af7d0cb9ec0c6337b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f8d79bdb24771bd994c501f663750c.png)
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名校
9 . 已知椭圆
为其左右焦点,
为其上下顶点,四边形
的面积为
.点
为椭圆
上任意一点,以
为圆心的圆(记为圆
)总经过坐标原点
.
(1)求椭圆
的长轴
的最小值,并确定此时椭圆
的方程;
(2)对于(1)中确定的椭圆
,若给定圆
,则圆
和圆
的公共弦
的长是否为定值?如果是,求
的值;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969cd893f8fe13e1487d352bd6afee88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1fd1784f10d8607df59399dbf5d105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e694ed4fd4d76f641a4212908c0aa55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)对于(1)中确定的椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b45b349751b926a4252266c8108f572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
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2019-04-08更新
|
1490次组卷
|
8卷引用:【校级联考】江西省吉安一中、九江一中、新余一中等八所重点中学2019届高三4月联考数学(文)试题
【校级联考】江西省吉安一中、九江一中、新余一中等八所重点中学2019届高三4月联考数学(文)试题江西省临川二中、临川二中实验学校2019-2020学年高三上学期第三次月考数学(文)试题(已下线)2020届高三12月第01期(考点08)(文科)-《新题速递·数学》(已下线)专题05 平面解析几何——2020年高考真题和模拟题文科数学分项汇编(已下线)专题9.5 椭 圆-2021年高考数学(理)一轮复习-题型全归纳与高效训练突破(已下线)专题9.3 椭圆(精练)-2021年高考数学(理)一轮复习学与练(已下线)专题13 直线与圆-备战2021年高考数学二轮复习题型专练(新高考专用)江西省上高二中2022-2023学年高二上学期期中数学小练卷试题(1)
名校
10 . 已知椭圆
为其左右焦点,
为其上下顶点,四边形
的面积为
.
(1)求椭圆
的长轴
的最小值,并确定此时椭圆
的方程;
(2)对于(1)中确定的椭圆
,设过定点
的直线
与椭圆
相交于
两点,若
,当
时,求
面积
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969cd893f8fe13e1487d352bd6afee88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1fd1784f10d8607df59399dbf5d105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e694ed4fd4d76f641a4212908c0aa55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)对于(1)中确定的椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/accf35598ee054f1bf8b6584641d6d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff74809c22be43d371eab398caa8ec9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65844ad7d410463e70288b6d20a5f4c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45b8b000c9c286bff8a480dbf03b513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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