名校
解题方法
1 . 如图,在
与
中,
,
,
,
.连接
与
交于
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b53126f40bebbf484007b96d8b6cbe8.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36572a10fcb483a9abb63a5039e09ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bfb235f77128813c9daaaf5cc0e705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef416f5253e7b253d8ee2728076120e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5de41efce6408ef107de0bfbe4bf08b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b53126f40bebbf484007b96d8b6cbe8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/3/002eaeba-c0ce-4b12-93a3-e6c463d17b4c.png?resizew=171)
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名校
2 . 如图,圆C:
与圆O:
内切于点A,当圆C沿圆O逆时针方向无滑动地滚动一周时,圆C上的定点P(开始在点A)运动的轨迹是一个三叶轮.已知圆C上的定点P按这种运动方式从点A开始运动(B是两圆的切点).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/5/fddcfe0b-943a-40b1-a8ab-159fe401e6ab.png?resizew=170)
(1)若
,求点P的坐标;
(2)若
,求点P的轨迹关于
的参数方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9df0d79e42d86b0def4caa10dffa75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08227ca941898eb34941f446ca8b1de8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/5/fddcfe0b-943a-40b1-a8ab-159fe401e6ab.png?resizew=170)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d162c29b1e484cfc87350dd68f00b85.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7e00f8bacce4d649b535449f04568c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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