1 . 公元前3世纪,古希腊数学家阿波罗尼斯(Apollonius)在《平面轨迹》一书中,曾研究了众多的平面轨迹问题,其中有如下结果:平面内到两定点距离之比等于已知数的动点轨迹为直线或圆.后世把这种圆称之为阿波罗尼斯圆. 已知直角坐标系中
,
,动点
满足
,若点
的轨迹为一条直线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
______ ;若
,则点
的轨迹方程为_______________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9d94a1c2ccc3dd034e6f78e1521a2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd67472df5db5c5052c92dad8e6f323c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1744f0fc7dc7deafa01f1fa4a9fde7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2018-10-21更新
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2卷引用:浙江省台州市书生中学2018-2019学年高二上学期第一次月考数学试题