真题
名校
1 . 在
中,
,
.若以
为焦点的椭圆经过点
,则该椭圆的离心率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56082bf016cb39e09e3cd65d6c971f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
您最近一年使用:0次
2016-11-30更新
|
1204次组卷
|
11卷引用:【校级联考】河北省沧州市七县2018-2019学年高二上学期期中考试数学(文)试题
【校级联考】河北省沧州市七县2018-2019学年高二上学期期中考试数学(文)试题2.1.2 椭圆的简单几何性质(习题)-2021-2022学年高二上学期数学北师大版(2019)选择性必修第一册2008年普通高等学校招生全国统一考试理科数学(全国卷Ⅰ)2008年普通高等学校招生全国统一考试文科数学(全国卷Ⅰ)(已下线)2011届广东省深圳高级中学高三上学期期中考试数学理卷北京首师附中2018届高三理零模试卷数学(理)试题河北省定州中学2018届高三毕业班下学期第一次月考数学试题山西省长治市2019-2020学年高三上学期九月份统一联考数学(文)试题2019年9月山西省长治市高三统一联考数学(文)试题(已下线)秒杀题型04 离心率(椭圆与双曲线)-2020年高考数学试题调研之秒杀圆锥曲线压轴题2008 年普通高等学校招生考试数学(理)试题(大纲卷 Ⅰ)
名校
2 . 已知
是椭圆
上的一点,
,
为焦点,若
,
,则椭圆的焦距与长轴的比值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/d6e29cd72e0bdf6e74bbf27b397fb123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbae0e124e0fb0d80f6058f7e98171ae.png)
您最近一年使用:0次
解题方法
3 . 设F1,F2为椭圆
的焦点,过F1且垂直于x轴的直线与椭圆交于A,B两点,若△ABF2为锐角三角形,则该椭圆离心率e的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e43c3621b12e03422ae9868c78e3327.png)
您最近一年使用:0次
2020-03-18更新
|
546次组卷
|
2卷引用:河南省商丘名校2018-2019学年高二上学期末联考数学(文)试题
名校
4 . 已知P是椭圆
和双曲线
的一个共公点,
是椭圆和双曲线的公共焦点,
分别为椭圆和双曲线的离心率,若
,则
的最大值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff730b8025a2ce7e75576a6d74ff3a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba347015a0502169b019d06481fe8630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c24aa150ab51ba82f69384dcf0b0b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8feadea0abc5042f9ea7548e145c880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f994a876391534efe497dc115a53e3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db634c178cd7bffbd4cb886e3f2cca22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2770478f4c5e9339f84a0c39c66a4e59.png)
您最近一年使用:0次
2019-04-26更新
|
786次组卷
|
2卷引用:【全国百强校】浙江省嘉兴市第一中学、湖州中学2018-2019学年高二下学期期中考试数学试题
解题方法
5 . 已知椭圆
的左右焦点分别为
,
为过
的直线与椭圆
的交点,且
为正三角形,则该椭圆的离心率为_______ .
![](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/f6bce3d91ca23b86d8c6625f2632e437.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/35eb8a895a6122917c531afea1a83284.png)
您最近一年使用:0次
2020-03-20更新
|
543次组卷
|
5卷引用:广西梧州市2019-2020学年度高二上学期期末质量检测数学理科试题
6 . 如图,过椭圆
的左焦点
作
轴的垂线交椭圆于点
,点
和点
分别为椭圆的右顶点和上顶点,
.
![](https://img.xkw.com/dksih/QBM/2019/7/9/2243056150536192/2243106230116352/STEM/76024db4f85b45aaa6064b849f8990c2.png?resizew=262)
(1)求椭圆的离心率
;
(2)过右焦点
作一条弦
,使
,若
的面积为
,求椭圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/dca17d8a79ebaf59564aff7351e67cbc.png)
![](https://img.xkw.com/dksih/QBM/2019/7/9/2243056150536192/2243106230116352/STEM/76024db4f85b45aaa6064b849f8990c2.png?resizew=262)
(1)求椭圆的离心率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(2)过右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b008d7989d2a5b298d8ef4b006c6de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fe9e97ae64aea93e33d0df5fd2f963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395424943f098d2c9a83d80039018429.png)
您最近一年使用:0次
2019-07-09更新
|
834次组卷
|
2卷引用:河南省顶级名校2018-2019学年高二下学期期末数学(理)试题
7 . 已知椭圆
的右焦点
,过
的直线交椭圆
于
、
两点,且
是线段
的中点.
(1)求椭圆
的离心率;
(2)已知
是椭圆的左焦点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c96b59b8f6b4961fd8792c64eec4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3377c0c2bcd334a93133cdd37f34ed88.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25553c981506162acd2c209784f2e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42dfeedb1b7bf383520fd0853ff14f32.png)
您最近一年使用:0次
19-20高二·浙江·期末
解题方法
8 . 设
、
为椭圆
的短轴端点,
为椭圆上异于
、
的点,直线
、
的斜率分别为
、
.若
,则该椭圆的离心率为( )
![](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/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcb71b9faccca05307b72582a3be8cb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 已知椭圆C:
的左、右焦点分别为
,
,点P是椭圆C上一点,椭圆C内一点Q满足:点Q在
的延长线上
若
,则该椭圆离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b55f4ca2d21088854e1aeb040fa950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241412b5c9fdd2dbd6230906d5177e2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c175b022b31270ddf099dd3861a067.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 已知椭圆
与双曲线
有相同的左、右焦点
,
,若点P是
与
在第一象限内的交点,且
,设
与
的离心率分别为
,
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3deed465ae4671c481abe9d4d913413a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e760e2cd8c4abc7b36a097fd49cb794c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1996f60e2c55e0caa2b095ac23ab2b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e66a1d3fd21927cf15e3745286e665c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b7d2453cb5ae2da2b898c139b0cb1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23efc3f1eb088b699a9aa2775f66eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e66a1d3fd21927cf15e3745286e665c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b7d2453cb5ae2da2b898c139b0cb1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cddf807ba2d8f1301d9d0040cf561dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383d08d98d13ffa10a81d1388aac0d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ca5701a77433cfee14a029bc82b32e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-04-06更新
|
797次组卷
|
2卷引用:【区级联考】重庆市九龙坡区2018-2019学年高二上学期期末考试数学(理科)试题