解题方法
1 . 已知圆C:
,直线l:
,若l与圆C交于A,B两点,设坐标原点为O,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca01d1c400707e011745ad16199da13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef6d00ddabcb1bb41fae534f5183ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df09bff72dab3e6555a0597b638a3bd0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知圆
.
![](https://img.xkw.com/dksih/QBM/2020/7/30/2516906460012544/2517146412154880/STEM/5e4fde68-4c9f-4a6b-afa9-6b219f1e8ba9.png)
(Ⅰ)写出圆C的圆心坐标及半径长;
(Ⅱ)已知圆C与x轴相交于A、B两点,试问在圆C上是否存在点P,使
的面积等于
?若存在,请求出点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27938cd751a10d89cd751f1d6291735e.png)
![](https://img.xkw.com/dksih/QBM/2020/7/30/2516906460012544/2517146412154880/STEM/5e4fde68-4c9f-4a6b-afa9-6b219f1e8ba9.png)
(Ⅰ)写出圆C的圆心坐标及半径长;
(Ⅱ)已知圆C与x轴相交于A、B两点,试问在圆C上是否存在点P,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6093eebca8f3ff82ce9298feb197e955.png)
您最近一年使用:0次
2020-07-30更新
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411次组卷
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3卷引用:广西平果市铝城中学2023-2024学年高二上学期期末模拟数学试题(一)