名校
1 . 已知
.若C上存在点P,使得
.则正数r可以是_____________ .(只要写山一个符合条件的r即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c669b0d9ab78efb7dd87e82853807b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
您最近一年使用:0次
2023-02-19更新
|
559次组卷
|
2卷引用:江苏省常州市前黄高级中学2023届高三下学期二模适应性考试数学试题
2023·全国·模拟预测
解题方法
2 . 如图,在平面直角坐标系
中,圆O:
与坐标轴的四个交点分别为A,B,C,D,设动点P到A,B,C,D四点的距离分别为
,
,
,
,若
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d0252c1b2f7d2a84b5c985d19d547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d31659f106fba3c9750661eb0e3c3eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc577c8a4a3c5f4e0e6b9b7c54d6ef34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d31659f106fba3c9750661eb0e3c3eb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/65c926e8-b65b-43d2-abdb-5522b587d640.png?resizew=154)
您最近一年使用:0次
3 . 古希腊数学家阿波罗尼奥斯的著作《圆锥曲线论》中有这样一个命题:平面内与两定点的距离的比为常数k(
且
)的点的轨迹为圆,后人将这个圆称为阿波罗尼奥斯圆.已知点
圆C:
上有且只有一个点P满足
,则r的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c525393775354325cbf7839366ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955a7b69dd1ecca980724147eeceb7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b10616eaf32a653c853043bfea5392f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f43d21a3c6c95cc3970b9c921647e6f.png)
A.2 | B.8 | C.8或14 | D.2或14 |
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22-23高三·河北·阶段练习
名校
解题方法
4 . 图为世界名画《蒙娜丽莎》.假设蒙娜丽莎微笑时的嘴唇可看作半径为
的圆
的一段圆弧
,且弧
所对的圆周角为
.设圆
的圆心
在点
与弧
中点的连线所在直线上.若存在圆
满足:弧
上存在四点满足过这四点作圆
的切线,这四条切线与圆
也相切,则弧
上的点与圆
上的点的最短距离的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c48e8b4a3e2ef13de1ad88f8ed2b4ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
5 . 已知
.点
分别在
上.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec422ce8a8c420819cd069c43c5c7fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfb58e254b234df364b7234ad3d9011.png)
A.![]() | B.![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
6 . 已知直角
的直角顶点
在圆
上,若点
,
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1656c62845c428b87f5f24eb7c1ebcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f05b013e4b7166cbc87c5a83d6a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bbc4e4713d47d505dbeafb22d05565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-04更新
|
1189次组卷
|
2卷引用:浙江省Z20名校联盟(浙江省名校新高考研究联盟)2023届高三第二次联考数学试题
7 . 阿波罗尼斯是古希腊著名数学家,与欧几里得、阿基米德被称为亚历山大时期数学三巨匠,阿波罗尼斯发现:平面内到两个定点
的距离之比为定值
,且
的点的轨迹是圆,此圆被称为“阿波罗尼斯圆”.在平面直角坐标系
中,
,点
满足
.设点
的轨迹为曲线
,则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844da174d67557f7a44c0962d51189b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56a9870ee77ce3930c6692af93bc7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf1db3d608d81245f34a0d7b1aaab2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df5d30e4268a4b86a4e098e8cb57da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() ![]() |
B.当![]() ![]() |
C.在C上存在点M,使得![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
8 . 已知圆O的方程为
和圆P的方程为
,两圆上分别有动点
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d57275ee87696481a95242617b0448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3bcfcc5fdcec676875e253087acc568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35b1e8a952aac4f4cdaaf02d868d04.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-01-23更新
|
597次组卷
|
3卷引用:四川省宜宾市第四中学校2023届高考适应性考试文科数学试题
名校
9 . 已知圆
,圆
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f509aa1c463e7233b73762c84ffeb7.png)
A.无论k取何值,圆心![]() ![]() |
B.若圆O与圆![]() ![]() |
C.若圆O与圆![]() ![]() ![]() ![]() |
D.与两个圆都相切的直线叫做这两个圆的公切线,如果两个圆在公切线的同侧,则这条公切线叫做这两个圆的外公切线,当![]() ![]() |
您最近一年使用:0次
2023-01-16更新
|
1162次组卷
|
2卷引用:辽宁省名校联盟2023届高考模拟调研卷数学(三)
名校
10 . 已知圆
和两点
,若圆
上存在点
,使得
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e477ee739e99c850594d981d3ec51cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7759dc4054ad93c27b30fcaeb3a7a2fc.png)
![](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/6df9b574c6b6a4c878bf425d4fa31d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.14 | B.13 | C.12 | D.11 |
您最近一年使用:0次
2023-01-15更新
|
852次组卷
|
3卷引用:辽宁省鞍山市2023届高三第二次质量监测数学试题