名校
1 . 椭圆
的离心率为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914075a4574c09bdb860d8f8f09a4e7a.png)
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名校
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c95c6fedd33a4a8b2d25c4a2bd8d077.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e7368ce84efd18ac7a02d29c5d26e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c95c6fedd33a4a8b2d25c4a2bd8d077.png)
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3 . 已知向量
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4030a497f64c7d3671e10f3607b2ea1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9161f431d3806e75b3acd9e44550d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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4 . 椭圆
的焦点
的坐标为_____ ,若
为椭圆上任意一点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53836c455d2f63d7ad643dcead96e00.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89c03d164b45b7e9d3426efa62eb33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48932773034bb6e1651acf140d47822c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53836c455d2f63d7ad643dcead96e00.png)
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解题方法
5 . 抛物线C:
经过点
,则点P到C的焦点的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed5cf0b4c918b2795034e5b2b53cd1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a42451bdbef6c82dbaf8e06f0614794.png)
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2024-06-01更新
|
568次组卷
|
2卷引用:黑龙江省齐齐哈尔市建华区齐齐哈尔市实验中学2023-2024学年高二下学期5月期中考试数学试题
名校
解题方法
6 . 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
|
187次组卷
|
2卷引用:陕西省榆林市第一中学2023-2024学年高二上学期期中考试数学试题
名校
7 . 已知椭圆的方程为
,则它的焦点坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929070fe8b66d57fcfb19ec2b70218d3.png)
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8 . 如果双曲线关于原点对称,它的焦点在
轴上,实轴的长为8,焦距为10.则双曲线的标准方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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9 . 已知
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9043a9716d4eb6b554bab52ab9f59e43.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ba7ef36ba94ba9a3beef062610328b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51f6ee2386ce8dc3305e77269a25fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9043a9716d4eb6b554bab52ab9f59e43.png)
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解题方法
10 . 设
,
分别为椭圆
:
的两个焦点,过
且不与坐标轴重合的直线
椭圆C于A,B两点,则
的周长为( )
![](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/44d12ebd10f6c0bcf98be52c32b107f1.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/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
A.4 | B.8 | C.16 | D.32 |
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