名校
1 . 设
是双曲线
上一点,
分别是双曲线左右两个焦点,若
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311f4e2e5bdfbb147f32a6421c80a8f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d478d9b6b08fb5b27f6a9442a2d443e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96fa27f8db6167d4802a510371077bb5.png)
A.1 | B.17 | C.1或17 | D.5或13 |
您最近一年使用:0次
7日内更新
|
107次组卷
|
2卷引用:上海市南洋中学2023-2024学年高二下学期期末数学试题
2 . 抛物线
的焦点坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 若椭圆
的焦距为2,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720d2d6cc597b6f6e263e4e57fee0afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
A.1 | B.2 | C.3 | D.5 |
您最近一年使用:0次
4 . 抛物线
的准线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab25e4f4acfb0934bf0125577bbdc90.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 抛物线
的焦点坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108c18cb76d7d34b05c991a644c8b136.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知双曲线
的焦距为
,则双曲线
的焦点到渐近线的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c6960ebff0185b97ebd916b37abbed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 若抛物线
的焦点到直线
的距离为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
A.4 | B.![]() | C.2 | D.1 |
您最近一年使用:0次
8 . 已知方程
表示焦点在
轴上的椭圆,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95e06d2ba02b5176c01ceb2f420d950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 椭圆
的焦距为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48dc0a237b848088bf4ca9f82a1dd2b0.png)
A.![]() | B.4 | C.![]() | D.2 |
您最近一年使用:0次
10 . 抛物线
的准线方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0f8caa3b8714a4f402f20cd9cc9861.png)
您最近一年使用:0次