已知O为
所在平面内一点,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb7311326d7e86ccdc724199f537689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0976b61141fb7c70efeea95c19ea35b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2021-09-04 08:12:12
|
相似题推荐
单选题
|
较易
(0.85)
解题方法
【推荐1】若
是半径为
的圆上的三个点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033c595912a883ad0de1d7aebe9a5d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ba370a3912d1a983146af9c7f9c950.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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名校
【推荐2】如图所示,四个边长为1的正方形拼成一个大正方形,
是其中一个小正方形的一条边,
是小正方形其余的顶点,则集合
中元素的个数为( )
![](https://img.xkw.com/dksih/QBM/2020/4/7/2436227523207168/2437009964851200/STEM/a96ffc41a00441859d3a17333083ce2a.png?resizew=146)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1171f2d308dbed93d533b828b803d009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69fc6d306a6004c9de2fc9efa2bf557.png)
![](https://img.xkw.com/dksih/QBM/2020/4/7/2436227523207168/2437009964851200/STEM/a96ffc41a00441859d3a17333083ce2a.png?resizew=146)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
单选题
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解题方法
【推荐1】在菱形
中,
,
,
是
的中点,
是
上一点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fccc7b7bdc294441501d94ad331ad64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f87f543ece85ea6718d9340d8bf8e9f2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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解题方法
【推荐2】已知
,
,
,则
可等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f18996bd00253c3ad9f91780103affb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03ef3e7fb905b47f36c4630fcc65dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b84d7a4ba6766e1931538c033633ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffc403ded5faedb326b83d5d3f69a30.png)
A.![]() | B.7 | C.![]() | D.6 |
您最近一年使用:0次