1 . 已知圆
,直线
过点
,且交圆
于
,
两点,点
为线段
的中点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b5d1c65e78581a1f4c3eaa6c4357d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff89f1e521960785fd18636e31e55ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
A.![]() |
B.若圆![]() ![]() ![]() ![]() |
C.使![]() ![]() |
D.若点S为圆![]() ![]() ![]() |
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解题方法
2 . 对于直线l:
与圆C:
的以下说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b45ec7700887012db5d29fa6d1b2d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee0b84eb4edc8bf203e1e59d44bd64e.png)
A.l过定点![]() |
B.l被C截得的弦长最长时,![]() |
C.l与C相切时,![]() ![]() |
D.l与C相切时,记两种情形下的两个切点分别为A、B,则![]() |
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2024-01-22更新
|
186次组卷
|
2卷引用:重庆市长寿区八校联考2023-2024学年高二上学期期末检测数学试题(B卷)
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3 . 过定点
的动直线
:
,和过定点B的动直线
:
,P点为两直线的交点,圆C:
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aca3272c91ba9773f1c8342cdfdc432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63aa660686c9d384e3853b367962b4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554e6058f692f941d81ed74646455fc6.png)
A.直线![]() ![]() | B.直线![]() |
C.动点P的轨迹与圆C相离 | D.![]() |
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