1 . 已知圆
,点
,直线l过点P,且与圆交于AB两点.
(1)若弦长
取得最大值,求此时直线l的方程;
(2)若点M是圆C上任意一点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff46a210b171b20c8ccd568facad31ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b337c32bd5408c0ed8a9ee9cde4cad.png)
(1)若弦长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
(2)若点M是圆C上任意一点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5a8db58bd15f74962521398f276c23.png)
您最近一年使用:0次
名校
2 . 已知圆C的圆心在直线
上,且经过点
,
.
Ⅰ
求圆C的方程;
Ⅱ
已知点
,
,若P为圆C上的一动点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db763b919437ede73e4939b4719d43a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8652c6edc287793102d1443bd60f20d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec90a8b2b8ea833693c476cf1d6da02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adedcf0fd00ded914ff7e067a64cc64e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4794676b01512eed65e8fd307b6d068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4adbd226645a3d268260dc900ca3459.png)
您最近一年使用:0次
2019-04-03更新
|
116次组卷
|
2卷引用:四川省凉山宁南中学2021-2022学年高二上学期第二次月考数学(理)试题