已知圆
内有一点
,AB为过点P且倾斜角为
的弦,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd89a03660c85fb78bd7fe82ee3068c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a42451bdbef6c82dbaf8e06f0614794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4c5016bd1fc6582078299b9cf8b392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
更新时间:2022-05-11 19:41:23
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【推荐1】已知平面上一点
,若直线l上存在点P,使
,则称该直线为点M的“相关直线”,下列直线中是点M的“相关直线”的是___________ .(填序号)
①
;②
;③
;④
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64948de140efae2791ff4a9558d45b3a.png)
①
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
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名校
【推荐2】圆
的圆心到双曲线
的渐近线的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5096813d1a64dc8c36657f420bd7b5b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c58fa4a337f0b81b991fb32e8e6e3c0.png)
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解题方法
【推荐2】直线
与圆
交于
、
两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7a66df197e63b3120bf3aa3a367b0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
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