名校
解题方法
1 . 已知椭圆
的左、右焦点分别为
,
,点
是椭圆
上的一点,延长
交椭圆
于点
,且
为等边三角形,则椭圆
的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f0a4d7fdf80e0a663cb21aeda3de21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
上有一点P到右焦点的距离为4,则点P到左焦点的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c732a50945ba0d08a4e3e0c4796c74.png)
A.6 | B.3 | C.4 | D.2 |
您最近一年使用:0次
2024-05-29更新
|
210次组卷
|
2卷引用:甘肃省庆阳市环县第一中学2023-2024学年高二上学期期末考试数学试题
3 . 已知
,
分别为椭圆C:
的左、右焦点,P为C上一点,且
,O为坐标原点,则
的值为____________ .
![](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/c06ffc3051183ecdd0fa98799095bc13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124b231bf2cd3746f35e6c68cd7178f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f645d4b09fba53f971172cd2602c691.png)
您最近一年使用:0次
23-24高二上·全国·期末
解题方法
4 . 已知椭圆的左、右焦点分别为
,
,
为椭圆
上任意一点,
为圆
上任意一点,则
的最小值为
您最近一年使用:0次
解题方法
5 . 已知椭圆
的左、右焦点分别为
、
,若过
且斜率不为0的直线交椭圆于A、B两点,则
的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc603fea876cbf85b1efcb5bab0d500f.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/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 已知
是椭圆
上一动点,
是圆
上一动点,点
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914075a4574c09bdb860d8f8f09a4e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/648c5d95d6085f0c44d8ca9f7d510661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00ff23b7edede885b8945ca0f407f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c07d0b580b9a9a9899059506bdc3ba.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
2024-02-11更新
|
255次组卷
|
2卷引用:福建省宁德市2023-2024学年高二上学期期末质量检测数学试题
解题方法
7 . 已知椭圆
的左、右焦点分别为
,过点
作直线
与椭圆
交于
两点,设
,若
内切圆的面积为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5ced4a3702ee5559304c9942400d50.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bffc1df8f9d08573665c4771f98fa3f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
8 . 如图,已知椭圆
的左、右焦点分别为
,过椭圆左焦点
的直线与椭圆
相交于
两点,
,
,则椭圆
的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3324199c6751f2e0e6d8542783b0d957.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c388f94adc940de0fd317d00b3cd9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040b10c7d1c56f08e3d31a61195c689a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/a1e3ab5b-2a04-417e-aeee-b7ba4905e233.png?resizew=165)
您最近一年使用:0次
2024-01-25更新
|
320次组卷
|
5卷引用:甘肃省庆阳市环县第一中学2023-2024学年高二上学期期末考试数学试题
解题方法
9 . 已知椭圆
的上、下焦点分别为
,
,上顶点为A,右顶点为B,原点为O,直线
与椭圆C交于D,E两点,点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cabbf3f0560749b8db5bfd8204cbd47.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/c3016baf1a9ce777f16ea9ce469b2510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363598fd39f2269952dc6ddd1201346c.png)
A.四边形![]() ![]() |
B.四边形![]() |
C.直线BD,BE的斜率之积为![]() |
D.若动点Q满足![]() ![]() ![]() |
您最近一年使用:0次
10 . 已知
、
,下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a9659fe1279984da6a8d4d2bc369142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/682f50684ae25e45dfec0eaf8112a7a3.png)
A.平面内到![]() ![]() |
B.平面内到![]() ![]() ![]() |
C.平面内到![]() ![]() ![]() |
D.平面内到![]() ![]() ![]() |
您最近一年使用:0次
2024-01-17更新
|
632次组卷
|
3卷引用:模块五 专题3 期末全真模拟(能力卷1)高二期末
(已下线)模块五 专题3 期末全真模拟(能力卷1)高二期末湖北省武汉市武汉外国语学校2023-2024学年高二上学期12月阶段性考试数学试题云南省昆明市第三中学2023-2024学年高二上学期1月期末考试数学试卷