如图
是单位圆A的一条直径, F是线段
上的点,且
,若
是圆A中绕圆心A运动的一条直径,则
的值是( )
![](https://img.xkw.com/dksih/QBM/2014/4/24/1571646206320640/1571646211842048/STEM/e9fd0d28736a4b0181d540d70f31b34b.png?resizew=149)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fe8e2b7e9385e848a81152809e15a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bc748f8a1dc836d7fca25cd00d7cfe.png)
![](https://img.xkw.com/dksih/QBM/2014/4/24/1571646206320640/1571646211842048/STEM/e9fd0d28736a4b0181d540d70f31b34b.png?resizew=149)
A.![]() | B.![]() | C.![]() | D.![]() |
13-14高一下·江西南昌·阶段练习 查看更多[1]
(已下线)2013-2014学年江西南昌八一中学、洪都中学高一3月联考数学试卷
更新时间:2019-01-30 18:14:09
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解题方法
【推荐2】在
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适中
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解题方法
【推荐1】在直角
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐2】已知
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