1 . 已知椭圆
的离心率
,其右焦点与抛物线
的焦点
重合.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/2b3d2f85-0455-4e5b-a4dc-11d760d4aa57.png?resizew=154)
(1)求椭圆的标准方程;
(2)过
作两条互相垂直的直线
,若
交椭圆于
,
交抛物线于
,求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0348e8cdd04a08e36cf940aa4bbd95b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/2b3d2f85-0455-4e5b-a4dc-11d760d4aa57.png?resizew=154)
(1)求椭圆的标准方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e478787ebfeb68a5a7594dbd9eecd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f90eb172dbd2ff7ae6f705801c0737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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名校
解题方法
2 . 如图,设椭圆
:
(
),长轴的右端点与抛物线
:
的焦点
重合,且椭圆
的离心率是
.
![](https://img.xkw.com/dksih/QBM/2020/12/12/2612531495436288/2614155589541888/STEM/b2b29fc8-8527-4171-9503-aac099ee0a51.png?resizew=235)
(1)求椭圆
的标准方程;
(2)过
作直线
交抛物线
于
,
两点,过
且与直线
垂直的直线交椭圆
于另一点
,求
面积的最小值,以及取到最小值时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://img.xkw.com/dksih/QBM/2020/12/12/2612531495436288/2614155589541888/STEM/b2b29fc8-8527-4171-9503-aac099ee0a51.png?resizew=235)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)过
![](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/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/a0ed1ec316bc54c37c4286c208f55667.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-12-14更新
|
478次组卷
|
9卷引用:2017届江西省鹰潭市高三第一次模拟考试数学(理)试卷
名校
解题方法
3 . 如图所示,
,
分别为椭圆
:
的左、右两个焦点,
,
为两个顶点,已知椭圆
上的点
到
,
两点的距离之和为4.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/32ef34fa-f3b8-47cf-b909-e305f334e0b2.png?resizew=150)
(1)求椭圆
的方程;
(2)过椭圆
的焦点
作
的平行线交椭圆于
,
,求
的面积.
![](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/7dd54b9df3402ad91e2d34c40efe0c7a.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/32ef34fa-f3b8-47cf-b909-e305f334e0b2.png?resizew=150)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35eb8a895a6122917c531afea1a83284.png)
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2020-12-14更新
|
163次组卷
|
4卷引用:江西省南康唐江中学2019-2020学年高二下学期开学线上检测数学(文)试题
4 . 已知椭圆
:
(
)的离心率为
,短轴端点到焦点的距离为2.
(1)求椭圆
的方程
(2)设
,
为椭圆
上任意两点,
为坐标原点,且
.求证:原点
到直线
的距离为定值,并求出该定值.
![](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/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2020-12-11更新
|
1222次组卷
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7卷引用:陕西省西安市2018届高三上学期期末考试数学(理)试题
陕西省西安市2018届高三上学期期末考试数学(理)试题(已下线)2018年高考二轮复习测试专项【新课标文科】热点十 椭圆、双曲线、抛物线的几何性质的应用(已下线)2018年高考二轮复习测试专项【新课标理科】热点十 椭圆、双曲线、抛物线的几何性质的应用(已下线)《2018届优生-百日闯关系列》数学专题三 第二关 以解析几何中与椭圆相关的综合问题四川省成都市锦江区田家炳中学2019-2020学年高二上学期期中数学理科试题江西省南昌市新建一中2020-2021学年高二下学期开学考试数学(理)试题陕西省西安市铁一中学2022-2023学年高二上学期1月期末数学试题
名校
解题方法
5 . 已知椭圆C:
(a>b>0)的焦点坐标分别为F1(-1,0),F2(1,0),P为椭圆C上一点,满足3|PF1|=5|PF2|且cos∠F1PF2=
.
(1)求椭圆C的标准方程;
(2)设直线l:y=kx+m与椭圆C交于A,B两点,点Q
,若|AQ|=|BQ|,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
(1)求椭圆C的标准方程;
(2)设直线l:y=kx+m与椭圆C交于A,B两点,点Q
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526fed630f5b6cda126a5c290d1b1811.png)
您最近一年使用:0次
2020-12-11更新
|
629次组卷
|
6卷引用:【全国百强校】东北师大附中2018届四模——理科数学试题
名校
解题方法
6 . 已知中心为坐标原点的椭圆
的一个焦点为
,且经过点
.
(1)求椭圆
的标准方程.
(2)若不经过点
的直线
:
与椭圆
交于
,
两点,且与圆
相切,试探究
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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ce47fde921058026708a4321a0e213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1522bb65cf4212528ab12c6b564d585c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若不经过点
![](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/9d6ff8a25b65469b4bc5fe12710d631c.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/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
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2020-12-09更新
|
787次组卷
|
4卷引用:山西省2021届高三上学期八校联考数学(理)试题
解题方法
7 . 已知圆
,经过椭圆
的左、右焦点
,且与椭圆C在第一象限的交点为A,且
,E,A三点共线,直线l交椭圆C于两点M,N,且
.
(1)求椭圆C的方程;
(2)当
的面积取到最大值时,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92c4a8dac931e97235f70d17766e0ee.png)
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18c415049b9a6ce5ca758c30f2ae19e.png)
(1)求椭圆C的方程;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
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20-21高二上·江西南昌·期中
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解题方法
8 . 已知P是圆
上一动点,P点在x轴上的射影是D,点M满足
.
(1)求动点M的轨迹曲线C的方程;
(2)若点
在曲线C上,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ab07238b6a4c372d85ccb409ab38a2.png)
(1)求动点M的轨迹曲线C的方程;
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/529976dc881bc4d85ff984b82df98b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bad3be8e3fdeda3a12251d3751715e1.png)
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20-21高二上·江西南昌·期中
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9 . 已知方程
和
(其中
,
,
),则它们所表示的曲线可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0f479daf8a8594a9fafe3d6871aafa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fe8d6ceb1175bdbf6936ff67fa2990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eae9ba258299eb489b490594397e23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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20-21高二上·江西南昌·期中
名校
10 . 已知椭圆
经过点
,左、右焦点分别
、
,椭圆的四个顶点围成的菱形面积为
.
(Ⅰ)求椭圆C的方程;
(Ⅱ)设Q是椭圆C上不在x轴上的一个动点,O为坐标原点,过点
作
的平行线交椭圆于
、
两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182c81fb1c5e6d1a57a5f34a31ee69a9.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/4e2031d209711b058f3d278ede3c1d33.png)
(Ⅰ)求椭圆C的方程;
(Ⅱ)设Q是椭圆C上不在x轴上的一个动点,O为坐标原点,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.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/c6577d89f5e9df4dbe97912c9331d375.png)
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