名校
解题方法
1 . 已知圆
,点A是圆C1上一动点,点
,点C是线段AB的中点.
(1)求点C的轨迹方程;
(2)直线l过点
且与点C的轨迹交于 M,N两点,若
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c391d1d14e4471a0d36ea94b0e9c8b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
(1)求点C的轨迹方程;
(2)直线l过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14a85d5d71e238da9f4e499faec0f30.png)
您最近一年使用:0次
2022-11-30更新
|
648次组卷
|
4卷引用:吉林省白城市洮南市第一中学2023-2024学年高二上学期期中数学试题
名校
解题方法
2 . 如图,在平面直角坐标系
中,点
,直线
.设圆
的半径为1,圆心在直线
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/3e014eeb-9636-4b8f-b8a8-06fa5fdf3f50.png?resizew=142)
(1)若圆心
也在直线
上,过点
作圆
的切线,求切线的方程;
(2)若圆
上存在点
,使
,求圆心
的横坐标
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b817fd4030ab24f684700ac8b91e56ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/3e014eeb-9636-4b8f-b8a8-06fa5fdf3f50.png?resizew=142)
(1)若圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff1f8994b70ccd72ac4c99aebbf0603b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-07-16更新
|
244次组卷
|
3卷引用:吉林省白城市通榆县白城市通榆县毓才高级中学有限责任公司2022-2023学年高二上学期期中数学试题
名校
3 . 已知点
在圆
上运动,
,点
线段
的中点.
(1)求点
的轨迹方程.
(2)求点
到直线
的距离的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c699a757a7ee06c063150def9c5dffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee9fc479892e86ea52d982efa386c47.png)
您最近一年使用:0次
2020-03-18更新
|
297次组卷
|
2卷引用:吉林省白城市洮南市第一中学2020-2021学年第一学期高二期中考试数学(理)试题