名校
1 . 已知在平面直角坐标系
中椭圆
的离心率为
分别为椭圆
的左、右焦点,
为椭圆上不同于四个顶点的任意一点,延长线段
到
,若在
轴上存在一点
,满足
,垂足为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6a9a48f038f66fcdfee5a4cff3a03f.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bebd9ed54e18b770f72dc47370b1b2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98b430612519f031aa801f0961c87c0.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/c83e02c09428538ce8ae136cff26d3f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91027565b90e59242e57af1dfa7be2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6a9a48f038f66fcdfee5a4cff3a03f.png)
您最近一年使用:0次
2023-05-11更新
|
417次组卷
|
2卷引用:安徽省安庆市第二中学2023届高三下学期第二次联考数学试卷
2 . 设
为椭圆
的两个焦点,
为
上关于坐标原点对称的两点,且
,则四边形
的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e457eb8c28f5ab11a879c954e15ee87e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bb9c075a320b0fe23145061b1fb0f8.png)
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2023-05-03更新
|
130次组卷
|
2卷引用:广西邕衡金卷2023届高三一轮复习诊断性联考数学(理)试题
3 . 已知平面四边形ABCD中,点B,D在线段AC两侧,且线段AC的垂直平分线为直线BD,其中BD=12,AB+AD=15,现沿BD进行翻折,使得点A到达点A′的位置,且A′到C的距离为3,连接A′B,A′C,A′D,则四面体A′BCD体积的最大值为_____________ .
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆
的左、右焦点分别为
,
,点P在E及直线
上.若
,则E的离心率的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fd72f36c81a55cafa92739ee87f743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0652f06bac3f841bc23281ad90780e03.png)
您最近一年使用:0次
2023-04-26更新
|
796次组卷
|
3卷引用:2023年高三黑白卷数学试卷(新高考)(黑卷)
名校
5 . 已知椭圆
:
的左、右焦点分别为
,
,以
为圆心,
为半径的圆与
轴交于
,
两点(
,
两点均在
外),连接
,与
交于点P,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3886203b5afb7dc864b6fca1fbe5c7.png)
________ ;椭圆
的离心率为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e19960ba707a6b1d55460c6a5855dd3.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdfc6a59392d1ac3cd89ddc0308864c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80ecb6b5d5eca464b3f099513c08fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3aa7a6f779d890300d8fcce9d6d786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3886203b5afb7dc864b6fca1fbe5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2023-04-26更新
|
459次组卷
|
3卷引用:河北省2023届高三下学期大数据应用调研联合测评(Ⅲ)数学试题
解题方法
6 . 已知椭圆
:
的左、右焦点为
,
,上顶点为P,直线
交
于点Q,若
,则椭圆
的离心率是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf9cd32c238df49185b49a713f35b127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
您最近一年使用:0次
名校
7 . 已知椭圆
的左、右焦点分别为
.若
关于直线
的对称点
恰好在
上,且直线
与
的另一个交点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf7410fa26ffad9af6c0a992103b6b1.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/08b9f0b9e53a83e68f5fec944f343119.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/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf7410fa26ffad9af6c0a992103b6b1.png)
您最近一年使用:0次
2023-04-15更新
|
1530次组卷
|
7卷引用:浙江省绍兴市2023届高三下学期4月高考适应性考试(二模)数学试题
名校
8 . 已知
,
分别为椭圆
的左、右焦点,点P在第一象限内,
,G为
重心,且满足
,线段
交椭圆C于点M,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/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e031bfda898bfd401eb7d064331e771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ee9681634d8189ba70279424dffe76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d31c3aa8504ec49f3c2327e82dc1ed.png)
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解题方法
9 . 设椭圆
的左、右焦点分别为
,过原点的直线l与C相交于M,N两点(点M在第一象限).若
,则C的离心率的最大值为___________ .
![](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/6ae97b22e57fe1f3a66be9f74248feb8.png)
您最近一年使用:0次
2023-04-10更新
|
617次组卷
|
4卷引用:广西桂林市、崇左市2023届高三一模数学(文)试题
广西桂林市、崇左市2023届高三一模数学(文)试题(已下线)专题14解析几何(选择填空题)(已下线)模块八 专题7 以解析几何为背景的压轴小题广西壮族自治区防城港市2023届高三下学期4月第三次联合调研数学(文)试题
名校
10 . 如图,一个光学装置由有公共焦点
的椭圆C与双曲线
构成,一光线从左焦点
发出,依次经过
与C的反射,又回到点
.,历时m秒;若将装置中的
去掉,则该光线从点
发出,经过C两次反射后又回到点
历时n秒,若
的离心率为C的离心率的4倍,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/a1a82dcc-6793-4e8e-b715-ff79a847d88d.png?resizew=337)
您最近一年使用:0次
2023-04-09更新
|
669次组卷
|
6卷引用:广西桂林市、崇左市2023届高三一模数学(理)试题
广西桂林市、崇左市2023届高三一模数学(理)试题广西玉林市博白县中学2023届高三"逐梦高考"数学(理)模拟测试试题(二)(已下线)专题15解析几何(选择填空题)江西省景德镇一中2022-2023学年高一(19班)下学期期中考试数学试题.广西壮族自治区防城港市2023届高三下学期4月第三次联合调研考试数学(理)试题(已下线)专题07 双曲线的压轴题(5类题型+过关检测)-【常考压轴题】2023-2024学年高二数学上学期压轴题攻略(人教A版2019选择性必修第一册)