1 . 已知椭圆
:
的右焦点为
,过点
的两条互相垂直的直线
,
,
与椭圆
相交于点
,
,
与椭圆
相交于点
,
,则下列叙述不正确的是( )
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/2e9b0f5f44abbc6544a2f672b025b013.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/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
A.存在直线![]() ![]() ![]() |
B.存在直线![]() ![]() ![]() ![]() |
C.弦长![]() |
D.弦长![]() |
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2 . 已知
为坐标原点,椭圆的方程为
,若
、
为椭圆的两个动点且
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/7c649c261e3fc568be23670c6e6ee20e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f6c5fd93aed88bec58002a20ea2e90.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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3 . 已知椭圆
的右焦点为
,
是椭圆上一点,点
,当
的周长最大时,
的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0693b34e767ea963d4a75863c072d217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18eb2d78e6e294b81bff51ee5e8d4c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18eb2d78e6e294b81bff51ee5e8d4c8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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4 . 已知椭圆
的右焦点为
是椭圆上一点,点
,当
的周长最大时,直线
的方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d945b17623cd01fa90180c4d4fca91f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c815664fcf94df4f280ef1d5813194e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6eef6a802c72e0eec873a01a9aa345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
1071次组卷
|
4卷引用:【新东方】杭州新东方数学试卷409
(已下线)【新东方】杭州新东方数学试卷409(已下线)第37讲 活用圆锥曲线的定义-2022年新高考数学二轮专题突破精练2015-2016学年福建省厦门一中高二下期中文科数学试卷浙江省宁波市效实中学2020-2021学年高二上学期期中数学试题
5 . 已知
为椭圆C:
的左、右焦点,点E是椭圆C上的动点,
的最大值、最小值分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fdd1989149897babe496145a3812e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339cf45e7b508b8840cd21982f06cdc.png)
A.9,7 | B.8,7 | C.9,8 | D.17,8 |
您最近一年使用:0次
6 . 若点O和点F分别为椭圆
的中心和左焦点,点P为椭圆上的任意一点,则
的最大值为
![](https://img.xkw.com/dksih/QBM/2016/12/22/1619403453071360/1619403453317120/STEM/586f5aa6883e40508e2ae440e18a0b9b.png)
![](https://img.xkw.com/dksih/QBM/2016/12/22/1619403453071360/1619403453317120/STEM/6660b72e81814949a967bdacbb777fa5.png)
A.2 | B.3 | C.6 | D.8 |
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