1 . 椭圆绕长轴旋转所成的面为椭球面,椭球面镜一般指椭球面反射镜,老花眼镜、放大镜和胶片电影放映机聚光灯的反射镜等镜片都是这种椭球面镜片.从椭球面镜的一个焦点发出的光,经过椭球面镜反射后,必经过椭球面镜的另一个焦点.现有一个轴截面长轴长为
的椭球面镜,从其一焦点发出的光经两次反射后返回原焦点,所经过的路程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb6ba6a20d59ed6800fdd0e2ca5727c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知㭻圆
:
(
)经过点
,离心率为
.
(1)求椭圆
的方程;
(2)直线
与椭圆
交于点
(异于顶点)与
轴交于点
,点
为椭圆的右焦点,
为坐标原点,
,求直线
的方程.
![](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/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9d386c75aa97e31c5fb37e047bc336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
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2024-01-19更新
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570次组卷
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2卷引用:福建省南安市侨光中学2023-2024学年高二下学期第2次阶段考试(5月月考)数学试题
2024·全国·模拟预测
解题方法
3 . 已知
,
分别为椭圆
(
)的左、右焦点,过
的直线与C交于A,B两点,若
,则椭圆C的离心率为______ .
![](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/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cc6b0677910e7be745ad5609b3aea4.png)
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4 . 已知椭圆
和双曲线
的公共焦点为
,在第一象限内的交点为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf679418512d6ad973531df808fd267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9ebed0fde139e9699a8c46cc6620ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc9c2ee7fbe10e9392492c68138c739.png)
A.-4 | B.-6 | C.-8 | D.-9 |
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2024-01-11更新
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1344次组卷
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3卷引用:福建省泉州市实验中学2023-2024学年高二上学期1月考试数学试题
解题方法
5 . 已知椭圆E:
,点
和点
在椭圆E上.
(1)求椭圆E的方程;
(2)设P是椭圆上一点(异于C,D),直线
与x轴分别交于M,N两点.证明:在x轴上存在两点A,B,使得
·
是定值,并求此定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64196fcc78c3d4e076339b262ad91dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c359428c771c67617872618f54c9930f.png)
(1)求椭圆E的方程;
(2)设P是椭圆上一点(异于C,D),直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e7344dca1e40bf072371ddd5640111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42518891f8d7c97b5fb700de3440257b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c75706042f99400e482b44fa8566d33.png)
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2024-01-06更新
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384次组卷
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3卷引用:福建省泉州市实验中学2023-2024学年高二上学期1月考试数学试题
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6 . 已知
,
,动点
满足
,则点
的轨迹方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81eb055d1b1b925a6f5f2ca7b3f5387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 在平面直角坐标系
中,椭圆
的离心率
,且点
在椭圆
上.
(1)求椭圆
的方程;
(2)斜率为
的直线与椭圆
相交于
,
两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a9e1eb4c3226489d1344321b10b7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.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/866b81a8384cce4f24867baca2e6820c.png)
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解题方法
8 . 若椭圆
过点
且与椭圆
有相同的焦点,则椭圆
的方程为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71cb8757650fd3e0fb74170e519deb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2063233edc83b4e8bc5464f41019e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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9 . 已知
分别是椭圆
的左,右焦点,
为椭圆
上异于长轴端点
的动点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5379ca02a94af1e74e5e00e38ba6e327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4129f43a6af21631251511e63e2ac4b9.png)
![](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/ff92ef23dd31bb91ece0b416b231fd40.png)
A.![]() ![]() | B.![]() ![]() |
C.直线![]() ![]() | D.椭圆![]() ![]() |
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10 . 已知椭圆
的两焦点分别为
的离心率为
上有三点
,直线
分别过
的周长为8.
(1)求
的方程;
(2)①若
,求
的面积;
②证明:当
面积最大时,
必定经过
的某个顶点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/704bfc280d817fb77006ee98d4d7e5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99276d856410431e6ed0b59fc27e5264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c8c8746a97d79afa729753ef8b38ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2304324f76e8efaaec4fa0c6b677879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdba598caa59b8a2a68f6aed5de15525.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28c23cfc5eb8416cdf74c2da06e5656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffd5d363ebeaa6de0ff830742643db4.png)
②证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffd5d363ebeaa6de0ff830742643db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffd5d363ebeaa6de0ff830742643db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2023-12-17更新
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1303次组卷
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4卷引用:福建省泉州市实验中学2023-2024学年高二上学期12月月考数学试题
福建省泉州市实验中学2023-2024学年高二上学期12月月考数学试题福建省厦门第一中学2023-2024学年高二上学期十二月月考数学试卷江苏省扬州市扬州中学2024届新高考一卷数学模拟测试一(已下线)模块六 全真模拟篇 拔高1 期末终极研习室(2023-2024学年第一学期)高三