1 . (1)已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8690c5b4f4e2f9f13e2a94da1a688ecf.png)
______ ;
(2)若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b059c195ed8806d208984e89f400692.png)
______ ;
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf6266593c04e6cc80b462da609828.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8c9f990fc696c4b27d02cb9e92fe9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8690c5b4f4e2f9f13e2a94da1a688ecf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb39c8e18752c1348b067e83b3022e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8504e8973f9af7a594d199e1eca01ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b059c195ed8806d208984e89f400692.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf6266593c04e6cc80b462da609828.png)
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2 . 在
中,
,给出
满足的条件,就能得到动点
的轨迹方程,如表给出了一些条件及方程.
则满足条件①轨迹方程为 ______ ;满足②的轨迹方程为 ______ ;满足③轨迹方程为 ______ (用代号
填入).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c4097884431806db44263e7af5ae3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
条件 | ① | ② | ③ |
方程 | ![]() ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e15e5cd03f0e1f601614397b0f9654.png)
您最近一年使用:0次