名校
解题方法
1 . 已知圆
.
(1)直线
截圆
的弦长为
,求
的值.
(2)记圆
与
、
轴的正半轴分别交于
两点,动点
满足
,问:动点
的轨迹与圆
是否有两个公共点?若有,求出公共弦长;若没有,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac9d41ea9d8ded52c11fad476725068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)记圆
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2efd0f6553c44ecf94f600c18b21477f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2024-01-22更新
|
437次组卷
|
4卷引用:江西省上饶市婺源天佑中学2023-2024学年高二上学期1月考试数学试题
名校
2 . 已知圆O:
与圆C:
交于A,B两点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06b8f7f8f527bc06416288f9d7d7848.png)
A.线段AB的垂直平分线所在的直线方程为![]() |
B.直线AB的方程为![]() |
C.![]() |
D.若点P是圆O上的一点,则△PAB面积的最大值为![]() |
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4卷引用:江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(二)
3 . 已知圆
内有一点
, 过
的直线交圆
于
、
两点.
(1)当
为弦
的中点时, 求直线
的方程;
(2)若圆
与圆
相交于
、
两点, 求直线
的方程及
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/393a0e30b023f2a20d366eef481b5eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e69a73cedc514e44f40c8b6cd40110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcf431fad1fd535fc09b3a9895d89d4.png)
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2024-01-09更新
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名校
解题方法
4 . 已知圆
:
,点
为直线
:
上一动点,点
在圆
上,以下四个命题表述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b40b35e8c7578ec1ca1eb5c7ca4ddc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.直线![]() ![]() |
B.圆![]() ![]() |
C.过点![]() ![]() ![]() ![]() ![]() ![]() |
D.过点![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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4卷引用:江西省吉安市峡江中学2023-2024学年高二上学期期末数学试卷(九省联考题型)
江西省吉安市峡江中学2023-2024学年高二上学期期末数学试卷(九省联考题型)广西2024届高三高考桂柳鸿图模拟金卷试题(三)福建省福州市长乐第一中学2023-2024学年高二上学期1月月考数学试题(已下线)专题2 与圆有关的最值问题【练】(压轴小题大全)
名校
5 . 已知圆
:
,圆
:
,若圆
平分圆
的周长,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec7bb321ff1c2d3af2777a5c11d059c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184f703ad8f6529a02356e74855219f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5be36b5f1d7847cea1537f4efb56e1.png)
A.20 | B.-20 | C.10 | D.-10 |
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4卷引用:江西省上饶市艺术学校2023-2024学年高二上学期12月月考数学试题
江西省上饶市艺术学校2023-2024学年高二上学期12月月考数学试题江苏省泰州市口岸中学2023-2024学年高二上学期期中考试数学试卷(已下线)模块三 专题1 小题入门夯实练(3) 期末终极研习室(高二人教A版)江苏省盐城市射阳中学2023-2024学年高二上学期第二阶段测试数学试题
6 . 圆
:
与圆
:
没有公共点,则
的值可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e383fcc122f267043fbafe0972bfb900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886b1f42d89db484ec1a8e6c36ae7b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.2 | D.4 |
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名校
7 . 已知圆
:
与圆
:
相内切,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6dd631cd135d4c605a7512f4b651e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.11 | B.![]() | C.9 | D.![]() |
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8 . 圆
与圆
的位置关系是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860f470418e3ae0b119acd0dcb4e8b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc83afadf6eafa14e4697879f82a4ac3.png)
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名校
9 . 已知
与
,以下结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc60ccda36b34fe276f81788a453b1ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388adadb27f48f301eb96ee704d757e5.png)
A.![]() ![]() |
B.若直线![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
10 . 已知圆
:
,圆
:
.
(1)当
时,求圆
和圆
的公共弦长﹔
(2)是否存在实数a,使得圆
和圆
内含?若存在,求出实数a的取值范围,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f269f3d5e4148989d8897efa29cc60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1a64d2a342e628ba352d540279eea5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)是否存在实数a,使得圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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