1 . 直线l:
(
)被圆C:
截得的最短弦长为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41648653df1fd386e8bad05c8f79b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef92520d010a4b8ca5fe9c6be16cadf9.png)
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2022-10-28更新
|
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3卷引用:福建省诏安县桥东中学(霞葛教学点)2022-2023学年高二上学期期中考试数学试题
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解题方法
2 . 设
是椭圆
上的任一点,
为圆
的任一条直径,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caeb11677994ba487096958b1ad82ea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e003249c51c51ef2712d28d1075fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcc2af6f0deebe17fc67ce8234655bd.png)
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7卷引用:福建省南靖县第一中学、兰水中学2022-2023学年高二上学期期中联考数学试题
2020高三·全国·专题练习
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3 . 直线
分别与
轴,
轴交于
两点,点
在圆
上,则
面积的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6274852e643a635e7340efa732edddc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceefb41e62dc253988b7241c9522fbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694c32ca1e120e988012b7ecd74f625.png)
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2020-01-21更新
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8卷引用:福建省诏安县桥东中学2022-2023学年高二上学期期中考试数学试题