12-13高二上·湖南长沙·阶段练习
1 . 若一个动点
到两个定点
的距离差的绝对值为定值
,求点
的轨迹方程,并说明轨迹的形状.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35357456ca4ecdbf6175539b96cef11b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,
分别是双曲线
的左、右焦点,过
的直线与圆
相切且分别交双曲线的左、右两支于
、
两点,若
,则双曲线的渐近线方程为( )
![](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/bb74c0c2d1e5305cf55cfb9605929268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4be819fc47b2aa19ab2022b3dfeb6f.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/fbb7508534f83e5cda8cc3a128247e54.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
12-13高三上·吉林·期末
名校
3 . 已知有相同两焦点F1、F2的椭圆
+ y2=1和双曲线
- y2=1,P是它们的一个交点,则ΔF1PF2的形状是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9460f1e98f544e21e0388d42b135f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e858e6650ee342797dde78361661b441.png)
A.锐角三角形 | B.直角三角形 | C.钝角三角形 | D.等腰三角形 |
您最近一年使用:0次
2016-12-02更新
|
949次组卷
|
5卷引用:2012-2013年湖南长沙高二上第一学月理科数学试卷
(已下线)2012-2013年湖南长沙高二上第一学月理科数学试卷湖南省邵阳市新邵县2017-2018学年高二上学期期末文科数学试题(已下线)2012届吉林省吉林一中高三上学期期末质量检测数学上海市华师大第一附属中学2018-2019学年高二下学期期末数学试题沪教版(2020) 选修第一册 同步跟踪练习 第2章 2.3 阶段综合训练
名校
4 . 已知两点
,
,若直线上存在点P,使
,则称该直线为“B型直线”
给出下列直线:
其中为“B型直线”的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd01b71b83bd6c8a27a712f9c31fd40c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd799f4c8fb8e4b9d605f4c71e7edfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d3e961ac3cff5733b45c98bd6cec16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718b0193d59d2ac91a9e148af021ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10-11高二下·湖南·阶段练习
名校
5 . 已知双曲线
,直线l过其左焦点
,交双曲线左支于A、B两点,且
,
为双曲线的右焦点,
的周长为20,则m的值为 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cac7e2b7ce0d45b818a7869adee4cd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5e56b5cbcf69756792fc934bcc20cb.png)
A.8 | B.9 | C.16 | D.20 |
您最近一年使用:0次
2016-11-30更新
|
1223次组卷
|
6卷引用:2011年湖南省西州部分高中学校高二下学期1月份联考数学理卷
解题方法
6 . 过双曲线
的左焦点
有一条弦
交左支于
、
点,若
,
是双曲线的右焦点,则
的周长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ca1b693159b7ade34ab038d76ad09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c8bf9d533edb79d4f66e7cb1a060a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50667ce76318b23b69ac6b8e16dc80d0.png)
A.28 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知双曲线
的左右焦点分别是F1,F2,若双曲线右支上存在一点M,使得
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2345c4a372c8143281fbecca78f451b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e917802a0203cb94cc0051839054748c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c387da4d6c7f1ec65ae358d1ec908e8.png)
A.![]() | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
8 . 若双曲线
的焦距为
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353ba94a6e980c4667b647644fbb7703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() ![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 若双曲线
的左右焦点分别为
,
是双曲线左支上的一点,且
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9055f58bf6bb8d6c55dcc14b2ae51b4c.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c47a8427546e894f92d0fd52a7e3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de4c1e77124f945632a03118da101eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9055f58bf6bb8d6c55dcc14b2ae51b4c.png)
您最近一年使用:0次
13-14高三上·湖南长沙·阶段练习
10 . (1)已知定点
、
,动点N满足
(O为坐标原点),
,
,
,求点P的轨迹方程.
![](https://img.xkw.com/dksih/QBM/2014/1/14/1571480078819328/1571480084373504/STEM/6e6388e4dcba4f61a3839b2d3b5d8533.png?resizew=292)
(2)如图,已知椭圆
的上、下顶点分别为
,点P在椭圆上,且异于点
,直线
与直线
分别交于点
,
![](https://img.xkw.com/dksih/QBM/2014/1/14/1571480078819328/1571480084373504/STEM/1746c4cc0e8e41ac95d2a596df7720fe.png?resizew=353)
(ⅰ)设直线
的斜率分别为
,求证:
为定值;
(ⅱ)当P点运动时,以
为直径的圆是否经过定点?请证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4e568d9cd57c442f011a787ab8aaf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914c2124260496e9307d6448c0c943f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c773be921d91ec2af8d154e1ac958ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253ec9ace4de04cf25832080b3fa23de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f2477ed654acc4cb4a257a943eddba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb44422c6bd6222d0ecc06ee75598446.png)
![](https://img.xkw.com/dksih/QBM/2014/1/14/1571480078819328/1571480084373504/STEM/6e6388e4dcba4f61a3839b2d3b5d8533.png?resizew=292)
(2)如图,已知椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e4e4c7a79d9d3cdb9ac5949d53e33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e4e4c7a79d9d3cdb9ac5949d53e33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5c9e1c50e534c196c65a6a86cfec16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fec96b5e74f5c2915a1d34d0fdeb737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://img.xkw.com/dksih/QBM/2014/1/14/1571480078819328/1571480084373504/STEM/1746c4cc0e8e41ac95d2a596df7720fe.png?resizew=353)
(ⅰ)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5c9e1c50e534c196c65a6a86cfec16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
(ⅱ)当P点运动时,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次