名校
1 . 设
是椭圆
(
)的右焦点,
为坐标原点,过
作斜率为
的直线
交椭圆于
,
两点(
点在
轴上方),过
作
的垂线,垂足为
,且
,则该椭圆的离心率是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b12efb03327f461e868b2ea433f9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3386761c5b80633b40dd9d4a4c9cb422.png)
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2022-11-04更新
|
636次组卷
|
3卷引用:浙江省湖州、丽水、衢州三地市2022-2023学年高三上学期11月教学质量检测数学试题
解题方法
2 . 设椭圆
的左、右焦点分别为
、
,P是椭圆C上一点,且直线
与
轴垂直,直线
的斜率为
,则椭圆
的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2023-03-23更新
|
288次组卷
|
2卷引用:浙江省杭州市六县九校联盟2022-2023学年高二下学期期中数学试题
解题方法
3 . 我们把焦点在同一条坐标轴上,且离心率相同的椭圆叫做“相似椭圆”.若椭圆
,则以椭圆E的焦点为顶点的相似椭圆F的标准方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b831906dd416ef60b74511aa79badb.png)
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名校
解题方法
4 . 已知
、
分别为椭圆
的左、右焦点,P是椭圆C上的一点,直线
,且
,垂足为Q点.若四边形
为平行四边形,则椭圆C的离心率的取值范围是________ .
![](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/ef6b94e42869013745050aba059b58dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701608891d50a94e474a39d9a17b33ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b9d83969b6a8e27e57ab71b34e2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07936be85ee31084d5b01bd89556c13.png)
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名校
解题方法
5 . 椭圆
(焦点在
轴上)的上、下顶点分别为
,点
在椭圆上,平面四边形
满足
,且
,则该椭圆的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f083ee14455834830f41c38177e720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379670d02a53ddc47ee20485039356cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aba0f97c5fea9dfab5558dcc37a8b77e.png)
![](https://img.xkw.com/dksih/QBM/2022/9/4/3059081464111104/3059859310231552/STEM/86c0530d51f34f90bec2d936247d82a5.png?resizew=128)
您最近一年使用:0次
2022-09-05更新
|
742次组卷
|
9卷引用:浙江省宁波市北仑中学2021-2022学年高一(1班)下学期期中数学试题
浙江省宁波市北仑中学2021-2022学年高一(1班)下学期期中数学试题广西玉林市2022届高三上学期教学质量监测数学(理)试题浙江省杭州市第十四中学2022-2023学年高三上学期9月练习(月考)数学试题(已下线)高二上学期期中【常考60题考点专练】(选修一全部内容)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)河北省唐县第一中学2021-2022学年高二下学期3月开学考试数学试题黑龙江省哈尔滨师范大学附属中学2021-2022学年高二下学期开学摸底考试数学试题(已下线)必刷卷02(文)-2022年高考数学考前信息必刷卷(全国甲卷)四川省泸县第四中学2022-2023学年高三下学期开学考试数学(文)试题四川省泸县第四中学2022-2023学年高三下学期开学考试数学(理)试题
名校
6 . 已知
,
是椭圆
的上、下焦点,过点
且斜率大于0的直线l交椭圆于A、B两点,若
,
,则椭圆的离心率为_______ ,直线l的斜率为_______ .
![](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/5fb223b8777ab973970491bf0dcc6806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70234eb8d90808471f1e7483b1582dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b0a3845fadc9be47f2417bd30db503.png)
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解题方法
7 . 若双曲线C的方程为
,记双曲线C的左、右顶点为A,B.弦PQ⊥x轴,记直线PA与直线QB交点为M,其轨迹为曲线T,则曲线T的离心率为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dad0c75ce33673ec4c425896e8619e4.png)
您最近一年使用:0次
2022-03-26更新
|
467次组卷
|
6卷引用:浙江名校联盟2022-2023学年高二下学期期中联考数学试题(B卷)
名校
解题方法
8 . 设椭圆标准方程为
,则该椭圆的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e78f1a9cc4dedc05c175ab99b288b9f.png)
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2022-01-28更新
|
451次组卷
|
5卷引用:浙江省杭州市第四中学吴山校区2022-2023学年高二上学期期中数学试题
名校
解题方法
9 . 已知
,
分别是椭圆
:
的左、右焦点,
为椭圆上一点,
为坐标原点,且
为
的内心.若存在实数
使得
,则椭圆的离心率为___________ .
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb54ef50ff1fc74959606901b3604d3.png)
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解题方法
10 . 已知椭圆
的长、短轴端点分别为A、B,从椭圆上一点M(在x轴上方)向x轴作垂线,恰好通过椭圆的左焦点
,
,设Q是椭圆上任意一点,
、
分别是左、右焦点,则椭圆的离心率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
___________ ;
的取值范围是___________ .
![](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/2b8aaf76104d32b6efd47532791b2f3c.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/47ce2b47812fce4b17fd813d0e4cce21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8865ce43941563e187aa89e7ff2372c.png)
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2021-12-10更新
|
525次组卷
|
2卷引用:浙江省绍兴市第一中学2021-2022学年高二上学期期中数学试题