1 . 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)
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2 . 已知椭圆C:
(
)经过
和
两点,则C上的点到右焦点距离的最小值为( )
![](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/bd243fab0af865af67a2ab817e909cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310f780f4f03699023b1322a1e002539.png)
A.![]() | B.1 | C.2 | D.3 |
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名校
解题方法
3 . 已知点F是抛物线C:
的焦点,过点F的直线l交抛物线C于P,Q两点,过点P作C的准线的垂线,垂足为M,O为坐标原点.
(1)证明:Q,O,M三点共线;
(2)若
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
(1)证明:Q,O,M三点共线;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80a362c99c725a66f7565f43c4dc16a.png)
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2024-04-16更新
|
150次组卷
|
2卷引用:山东省烟台市2023-2024学年高二上学期期末考试数学试卷
名校
解题方法
4 . (多选)已知
,
分别为椭圆C:
的左、右焦点,P为椭圆上任意一点(不在x轴上),
的内切圆与
切于点M,过点
的直线l与C交于A,B两点,则( )
![](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/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355dffb42861f3e297694f4be77c694c.png)
A.![]() |
B.![]() |
C.![]() |
D.若Q为![]() ![]() |
您最近一年使用:0次
2024-04-16更新
|
345次组卷
|
2卷引用:山东省烟台市2023-2024学年高二上学期期末考试数学试卷
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解题方法
5 . 已知双曲线C:
(
,
)的左、右焦点分别为
,
,过点
作直线l与C交于两点A,B(点B在第一象限),线段
的垂直平分线过点
,点
到直线l的距离为
,则C的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313fee58e284dfa5269f6825ec7fd03e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-16更新
|
313次组卷
|
3卷引用:山东省烟台市2023-2024学年高二上学期期末考试数学试卷
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6 . 已知双曲线的方程为
,则该双曲线的焦距为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa4714c98ff5ed7679c197ca6c49a41.png)
A.2 | B.4 | C.![]() | D.6 |
您最近一年使用:0次
2024-04-16更新
|
346次组卷
|
2卷引用:山东省烟台市2023-2024学年高二上学期期末考试数学试卷
解题方法
7 . 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.![]() |
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8 . 已知抛物线
的焦点为
,定点
,点
是抛物线上一个动点,则
的最小值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44331dd46961efa418e3261d4014b2f7.png)
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2024-01-09更新
|
885次组卷
|
5卷引用:山东省烟台爱华高级中学2023-2024学年高二上学期期末模拟数学试题(二)B卷
9 . 已知
,
是椭圆
的两个焦点,过
的斜率存在且不为0的直线l与椭圆C交于A,B两点,P是
的中点,O为坐标原点,则( )
![](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/9cce619f899a16eacda7a59c064bc967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.椭圆C的离心率为![]() | B.存在点A使得![]() |
C.若![]() ![]() | D.![]() ![]() ![]() |
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10 . 若动点P与点
间的距离等于点P到直线
的距离,则点P的轨迹方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c66f93f5f9bd6c7035d3fac976fc023c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d0aa9412dd7caf42cc71520e282328.png)
您最近一年使用:0次