已知圆
的半径为定长
,A是圆
所在平面内一个定点,
是圆上任意一点,线段
的垂直平分线
和直线
相交于点
.当点
在圆上运动时,下列判断正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/1/25/2901987014975488/2902988826394624/STEM/20ae85c9-7e00-4dd5-9c06-b9afe3aabae0.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2022/1/25/2901987014975488/2902988826394624/STEM/20ae85c9-7e00-4dd5-9c06-b9afe3aabae0.png?resizew=158)
A.点![]() | B.点![]() |
C.点![]() | D.点![]() |
更新时间:2022-01-26 21:28:47
|
相似题推荐
多选题
|
适中
(0.65)
【推荐1】平面内到两定点距离之积为常数的点的轨迹称为卡西尼卵形线,它是1675年卡西尼在研究土星及其卫星的运行规律时发现的.已知在平面直角坐标系
中,
,
,动点
满足
,其轨迹为一条连续的封闭曲线
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8547f2b4e89b0ae1445bda02d46f0668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e258dc5c8b4ea30bca80a56098065402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a9b944e7f76bd28e2a6514dd8aac38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.曲线![]() ![]() ![]() ![]() |
B.曲线![]() ![]() ![]() |
C.坐标原点![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
【推荐2】已知
,
是平面内两个定点,且
,则满足下列条件的动点
的轨迹为圆的是( )
![](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/55eaf0b36117ecd638c87afb8858b9df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
解题方法
【推荐1】已知平面内一动点与两定点连线的斜率的乘积为定值时,若该定值为正数,则该动点轨迹是双曲线(两定点除外);若该定值是负数,则该动点轨迹是圆或椭圆(两定点除外).如图,给定的矩形
中,
,
,E、F、G、H分别是矩形四条边的中点,M、N分别是直线
、
的动点,
,
,其中
,且直线
与直线
交于点P.下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/97ba1bc6-4a24-4090-8035-319b6cc2a210.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9023f48f8ef03b0b6b334a7296d3ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e024cd6044974e74d9c335a20a5728f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84dceb2a9582c6c10c19184d23db1bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2428289324e4bc2dd1f21644f9017d27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee843b8908f021e14f112b87e4e48d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a8588dc60a543ad70d6bc0d263dbd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360496a4f5cc8a5faca5e089ae4f9531.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/97ba1bc6-4a24-4090-8035-319b6cc2a210.png?resizew=179)
A.若![]() |
B.若![]() |
C.若![]() |
D.若![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
【推荐2】泰戈尔说过一句话:世界上最远的距离,不是树枝无法相依,而是相互了望的星星,却没有交汇的轨迹;世界上最远的距离,不是星星之间的轨迹,而是纵然轨迹交汇,却在转瞬间无处寻觅.已知点
,直线l:
,动点P到点F的距离是点P到直线l的距离的一半.若某直线上存在这样的点P,则称该直线为“最远距离直线”,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
A.点P的轨迹方程是号![]() |
B.直线![]() ![]() |
C.平面上有一点![]() ![]() |
D.点P的轨迹与圆C:![]() |
您最近一年使用:0次