名校
1 . 已知圆
,点
在圆
上,过
可作
的两条切线,记切点分别为
,
,则下列结论正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9edf67c2e68042e26faefd72455386c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ac72a8d5a7c6e52dcab76cb9ea6074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.当![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.若存在![]() ![]() ![]() ![]() |
D.若存在![]() ![]() ![]() ![]() ![]() |
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解题方法
2 . 已知圆心为C的圆经过点
和
,且圆心在直线
上,求:
(1)求圆心为C的圆的标准方程;
(2)若过点
作圆C的切线,求该切线方程;
(3)若圆C上恰有3个点到直线:
的距离为1,求实数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f20953302d861e6c698575bfbab1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292dd14f24b8392e499c328c1ca82f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aefcbc03a5c916ebb20f891a0fe7e0d.png)
(1)求圆心为C的圆的标准方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18bd80c6c4142f68e89f4ad44570b5.png)
(3)若圆C上恰有3个点到直线:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1970f9c78ed513e3710299ade4ac4bfe.png)
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2024-01-03更新
|
902次组卷
|
3卷引用:山东省泰安市泰山外国语学校2024届高三上学期期末数学试题
名校
解题方法
3 . 过直线
上的点P作圆
的两条切线
,当直线
关于直线
对称时,点P的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237d7d1a0959ec424d944aeb4012b288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-28更新
|
678次组卷
|
3卷引用:山东省泰安市泰山外国语学校2024届高三上学期期末数学试题
2023·全国·模拟预测
4 . 已知圆
,过点
,作圆
的两条切线,切点分别为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e10274381f2cfe52e79b99d9e98b804e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9a3ea5e76e165faeabfdbc9717c287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c6b242096be9b5f75daf95be75c232.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023·全国·模拟预测
解题方法
5 . 直线
与
轴交于
点,交圆
于
,
两点,过
点作圆
的切线,
轴上方的切点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098658ddd8826dc6637297e1e6c7acdc.png)
__________ ;
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ca3fc27bb55971d3282e52a1e49e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4260098e70d2ef82619ff47cc2269027.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098658ddd8826dc6637297e1e6c7acdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
您最近一年使用:0次
名校
6 . 已知圆
:
与圆
相交于
,
两点,直线
,点
为直线
上一动点,过
作圆
的切线
,
,(
,
为切点),则说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9613c3021a9b22ad21282f08f349129.png)
![](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/58fe7e1d2034b3d3cd99a6d0733283b0.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.直线![]() ![]() | B.线段![]() ![]() |
C.直线![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2023-12-20更新
|
758次组卷
|
5卷引用:江苏省常州市联盟学校2024届高三上学期12月学情调研数学试题
名校
解题方法
7 . 已知圆
的方程为
.
(1)求过点
且与圆
相切的直线
的方程;
(2)直线
过点
,且与圆
交于
,
两点,若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
(1)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbcf0320d94734aedd3d4e2e31b9827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35367029e2c2481165452ad8cd814098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/e3d5bb5ad0cfdeff469c1f70a068b7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-12-20更新
|
397次组卷
|
2卷引用:陕西省西安市长安区第一中学2023-2024学年高三上学期第一次质检(开学)数学试题
解题方法
8 . 过点
且与圆
:
相切的直线方程为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e280d0441a31fdbef3ce192d8d8f8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ba087b2a8c608d39686fc9a004864b.png)
您最近一年使用:0次
2023-12-18更新
|
971次组卷
|
4卷引用:陕西省西安市2024届高三上学期12月(第五次)联考数学试题
陕西省西安市2024届高三上学期12月(第五次)联考数学试题江苏省百校大联考2024届高三上学期第五次考试数学试题江苏省南京市励志高级中学2023-2024学年高二上学期期末模拟数学试题(已下线)2.5.1 直线与圆的位置关系【第一练】“上好三节课,做好三套题“高中数学素养晋级之路
名校
解题方法
9 . 已知动点
满足
,若直线l过点
与点M的轨迹相切,则直线l的方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9519dad0c81187bd62291462f5d9ac60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
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名校
解题方法
10 . 椭圆
的上顶点为P,圆
在椭圆E内.
![](https://img.xkw.com/dksih/QBM/2023/12/13/3388365748092928/3388418805055488/STEM/6ec39fc5ed90442a8a50e36af9f0ec84.png?resizew=151)
(1)求r的取值范围;
(2)过点
作圆C的两条切线,切点为AB,切线PA与椭圆E的另一个交点为N,切线PB与椭圆E的另一个交点为M.直线AB与y轴交于点S,直线MN与y轴交于点T.求
的最大值,并计算出此时圆C的半径r.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca2c2c7a8f822a339a40fb724c3be2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ac1566c343e6ea5d16032040f18507.png)
![](https://img.xkw.com/dksih/QBM/2023/12/13/3388365748092928/3388418805055488/STEM/6ec39fc5ed90442a8a50e36af9f0ec84.png?resizew=151)
(1)求r的取值范围;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a670d12554358604dc27abf2eaf1732.png)
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2023-12-13更新
|
887次组卷
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5卷引用:湖南省常德市第一中学2024届高三上学期第六次月考数学试题
湖南省常德市第一中学2024届高三上学期第六次月考数学试题浙江省杭州市余杭高级中学等四校2022-2023学年高二下学期3月联考数学试题浙江省宁波市北仑中学2023-2024学年高二上学期期中考试数学试题(已下线)四川省成都市第七中学2023-2024学年高二上学期12月月考数学试题(已下线)专题03 圆锥曲线题型全归纳(九大考点)-【寒假自学课】2024年高二数学寒假提升学与练(人教A版2019)