解题方法
1 . 已知圆
,圆
.
(1)讨论圆
与圆
的位置关系;
(2)当
时,求圆
与圆
的公切线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0928153ad46ce1946536d28ab0e0d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8635cdc6779bce1795017914a41e0623.png)
(1)讨论圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8176754726d2194c890e80df1a1f1c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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2 . 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.![]() ![]() |
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5卷引用:安徽省合肥市合肥八中2024届高三上学期七省联考全真模拟数学试卷 (二)
解题方法
3 . 已知圆
经过
,
两点.
(1)求圆
的半径;
(2)判断圆
(
且
)与圆
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693f2138ceb7dee28e012142fcbfccb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc878a5fd7b508cf817cbb65d3940547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf8f5d8be251bf2848d6d10aa0340f9.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)判断圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/458f692e00f30df65348237049473bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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4 . 在平面直角坐标系xOy中,已知直线l:
交x轴于点A,交y轴于点B,点P是直线上l的一点,过P作圆C:
的两条切线,切点分别为M,N,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04836ba2906cf6f1e9aecd2a00824aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6d5018b988d9843479cfdcfd3a522d.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.四边形PMCN的面积的最小值为![]() |
D.O点到直线MN的距离的最大值为1 |
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解题方法
5 . 已知圆
内有一点
,过点
的直线
与圆
交于
两点,过
分别作圆
的切线
,且
相交于点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9deb20b57fe0b94ca8520b55298d6c4a.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/acc290b44635265137fdf13146b6a6d9.png)
A.当![]() ![]() ![]() ![]() |
B.点![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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6 . 圆
与圆
的位置关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fd96e4411484a434db4eef60bbeff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b711dbbd7053f90da5fe3c3fa6f14e.png)
A.内切 | B.相交 | C.外切 | D.外离 |
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690次组卷
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5卷引用:安徽省蚌埠市怀远县怀远禹泽学校、固镇县汉兴学校2023-2024学年高二上学期第三次月考数学试题
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7 . 已知圆
与圆
,则下列说法正确的是
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c1c01121e7c2a52ebe672eeecc38840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c691b4c8e9d3d50c179eb5850f930379.png)
![](https://img.xkw.com/dksih/QBM/2023/11/18/3370788760117248/3371178539253760/STEM/3f563d83b647455886b77838eb91139c.png?resizew=4)
A.圆![]() ![]() |
B.若圆![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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8 . 圆
与圆
的公共弦长为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44bca9912b6fa8f1b9b9708e55b5a070.png)
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|
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4卷引用:安徽省合肥市合肥卓越中学2023-2024学年高二上学期期中数学试题
安徽省合肥市合肥卓越中学2023-2024学年高二上学期期中数学试题甘肃省白银市第九中学2023-2024学年高二上学期期中考试数学试题山东省淄博市第五中学2023-2024学年高二上学期期中考试数学试题(已下线)专题02 直线与圆的综合应用问题(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)
9 . 若圆
与圆
有公共点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e9c42440a4533ec1ae1286a1eba287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc12c55f2676aeb4f696f4a84e4d65b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 已知一组圆
,
,…,
均与三个定圆
,
,
相切,则圆
,
,…,
的面积和为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94555857a26590865f337f8c4a93c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47409b86dc80337b966c804f7ebd721d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f0ac3a9261d1e17069b16f8dc409c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94555857a26590865f337f8c4a93c37.png)
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