如图,
轴,垂足为
,将
绕点
逆时针旋转到△
的位置,使点
的对应点
落在直线
上,再将△
绕点
逆时针旋转到△
的位置,使点
的对应点
落在直线
上,依次进行下去…若点
的坐标是
,则点
的纵坐标为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ea84cba8ccd585ad1da1fd204bc3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abac49af241cc15c7834cd9627142627.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fd3e0285b257e73cf71c50b84c68d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49797d9a163b54dab7f004d4a0768df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb60dd65c10abde3ba0e4a60132d34d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98946b69c25a6819fc9082a6a69511a2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/7/648f8c3f-8c40-4eca-b8e3-a85eb5cf9dc4.png?resizew=209)
更新时间:2022-03-01 21:02:53
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【推荐2】如图,在平面直角坐标系
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名校
【推荐2】如图,Rt△OAB的斜边OA在y轴上,∠AOB=30°,OA=2;将Rt△AOB绕原点顺时针旋转60°,则A的对应点A1的坐标为 ___ .
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【推荐1】已知
在直角坐标系内的位置如图所示,
,把
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逆时针旋转
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为位似中心放大为原来的
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【推荐2】如图所示,在平面直角坐标系中,
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