1 . 已知
、
,下列说法中错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6704fe5ecf32226bfcb567bad8ab4f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a328d0718db198c9f3945c8cd6414a.png)
A.平面内到![]() ![]() |
B.平面内到![]() ![]() ![]() |
C.平面内到![]() ![]() ![]() |
D.平面内到![]() ![]() ![]() |
您最近一年使用:0次
解题方法
2 . 如图,圆O的半径为2,A是圆内一个定点,且
,B是圆外一个定点,且
,P是圆O上任意一点.线段
的垂直平分线
和半径
相交于点Q,线段
的垂直平分线
和半径OP相交于点R,当点在圆上运动时,点Q和点R的运动轨迹分别是椭圆和双曲线,设它们的离心率分别为
和
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ed6e21185ce4b8eadc7c807806bde5.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95b221648e1af2e931e72b323290b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552c8560b9790cd2349e340b522a3be5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80672dda9430cb42b3136bcb1b67bbad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0101a7b5c8a4aed0de2af363792e39a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13af018556f0b484ed38519f2edc791c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ed6e21185ce4b8eadc7c807806bde5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/8662dbb7-f6a9-4abe-9e7b-3dd0a5136130.png?resizew=180)
您最近一年使用:0次
名校
解题方法
3 . 在平面直角坐标系
中,已知
,点M满足
,记
的轨迹为曲线
.
(1)求曲线
的方程;
(2)设圆
,若直线l过圆
的圆心且与曲线
交于
两点,且
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40252f6b195b6bc1f94f001667098a21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a94d9603f1a856a847f0081e0bd61d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ad7c88b12702557163289559e8fe1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3d196cfee8345bd28a2f3814b676f5.png)
您最近一年使用:0次
2024-01-25更新
|
558次组卷
|
2卷引用:四川省成都市西北中学2023-2024学年高二上学期12月阶段性检测数学试题
4 . 若A是圆
所在平面内的一定点,
是圆
上的一动点,线段
的垂直平分线与直线
相交于点
,则点
的轨迹可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
A.圆 | B.椭圆 |
C.双曲线的一支 | D.抛物线 |
您最近一年使用:0次
2024-01-22更新
|
445次组卷
|
3卷引用:四川省成都市石室中学2023-2024学年高二上学期期末综合复习数学试题(一)
名校
解题方法
5 . 已知圆
和点
.
(1)过点
向圆
引切线,求切线的方程;
(2)点
是圆
上任意一点,
在线段
的延长线上,且点
是线段
的中点,求
点运动的轨迹
的方程;
(3)设圆
与
轴交于
两点,线段
上的点
上满足
,若
直线
,且直线
与(2)中曲线
交于
两点,满足
.试探究是否存在这样的直线
,若存在,请说明理由并写出直线
的斜率,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8c4afeb6cf6e4eac6c1044ecb12a2f.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d567bdeba9b8e17d0911f594e141eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03c5e1e4e2669563b22dcf05bfb9b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00579944399da601ec0a3f6b9adaaefc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53cc2d788ad5a5dc288b4237e45b89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d510eda8af3e2964bdc97c8d2be8ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
6 . 已知
,
,动圆
与圆
和圆
都外切,圆心
的轨迹为曲线
.
(1)求曲线C的方程;
(2)若过点
的直线
交曲线C于A,B两点,点Q能否为线段
的中点?为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6988eb8df26a32432551a230edeb718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a8253d11424e1782e82aba6eed03029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线C的方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23137dedeb4fd08055e850ab01c091f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-12-21更新
|
140次组卷
|
2卷引用:四川省遂宁市蓬溪中学校2023-2024学年高二上学期12月月考数学试题
名校
7 . 已知圆C:
.
(1)过
的动直线l与圆C:
交于A、B两点.若
,求直线l的方程;
(2)从圆C外一点Q向该圆引一条切线,切点为M,若
(O为坐标原点),求动点Q的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c82a1fed135888e1c072bc5078fc8a5.png)
(1)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c9708ef0dc6d6f5dcf6596d3e4f6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c82a1fed135888e1c072bc5078fc8a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed79cde317cee7f73037f66f52f02a50.png)
(2)从圆C外一点Q向该圆引一条切线,切点为M,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8f5281f1f036de2d3a737a70d21ae7.png)
您最近一年使用:0次
2023-11-14更新
|
468次组卷
|
3卷引用:四川省绵阳市南山中学实验学校2023-2024学年高二上学期期末模拟数学试题(二)
名校
解题方法
8 . 平面内到两个定点的距离之积为常数的点的轨迹称为卡西尼卵形线(Cassinioval).在平面直角坐标系
中,
,动点
满足
,其轨迹为曲线
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8da315d06311a9e65c6d862d2a72a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.曲线![]() ![]() | B.曲线![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
2023-10-12更新
|
546次组卷
|
4卷引用:四川省成都金苹果锦城第一中学2023-2024学年高二上学期期中考试数学试题
名校
解题方法
9 . 在平面直角坐标系
中,设点
的轨迹为曲线
.①过点
的动圆恒与
轴相切,
为该圆的直径;②点
到
的距离比
到y轴的距离大1.
在①和②中选择一个作为条件:
(1)选择条件: 求曲线
的方程;
(2)在
轴正半轴上是否存在一点
,当过点
的直线
与抛物线
交于
两点时,
为定值?若存在,求出点
的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2293f93791a597bf0162411f3395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
在①和②中选择一个作为条件:
(1)选择条件: 求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb06f44e38fd80cae18f092d1e0244d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5b4f602f6f1d4b4e262ac2b622aaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
10 . 在平面直角坐标系
中,已知圆心为C的动圆过点
,且在
轴上截得的弦长为4,记C的轨迹为曲线E.
(1)求E的方程,并说明E为何种曲线;
(2)已知
及曲线E上的两点B和D,直线AB,AD的斜率分别为
,
,且
,求证:直线BD经过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求E的方程,并说明E为何种曲线;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae3ab048431fdc75f9a2eef2a762f37.png)
您最近一年使用:0次