已知圆
上存在两个点到点
的距离均为
,则实数
的一个取值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6669f0abf2aabbe844d4737126f24d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f20953302d861e6c698575bfbab1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
更新时间:2023-11-03 10:13:26
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【推荐1】在平面直角坐标系xOy中,已知直线
和点
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【推荐2】已知椭圆
的方程为
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,
,椭圆
上存在一点
使得
,则实数
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
【推荐1】平面直角坐标系
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3285a2383fa18025034cf9876175295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c966320d637cab491c67425ef1338966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315fbde25a67b3809282c9e2243b6d97.png)
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【推荐2】已知圆
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轴交于点
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______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd5ec97add5ec930ecb4255c1d2f798.png)
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