已知点O为
所在平面内一点,且
,
,
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843320f137a9bafe1a599160fdfbf328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44aa4045bdfad62809441d59206aa390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbee3f23c790ce88f288cd0182c4eb49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.直角三角形 | B.等腰三角形 |
C.等边三角形 | D.等腰直角三角形 |
更新时间:2024-05-24 14:35:48
|
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单选题
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适中
(0.65)
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【推荐1】已知
为
所在平面内一点,
,
,则
的面积等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ba14b7012d070bb2bb0b4468173e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe08d8e484bd313a0aecb818852cbb3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
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【推荐2】在
中,若
,记
,
,
,则下列结论正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab0aaac830fbf1fe12da1386f97c24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a71940becbbc1f3f5e320dc94069a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b3082ee60c3b5f73d9b30f21fc0c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e442ba98785be35aabd1cfb1e91c7189.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】
中,若非零向量
与
满足
,
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a84a2aa0743a269c321435431079a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a2d2b2b666b03344637a73e05f5226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.等腰直角三角形 | B.三边均不相等的直角三角形 |
C.底边和腰不相等的等腰三角形 | D.等边三角形 |
您最近一年使用:0次
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适中
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【推荐2】在
中,若非零向量
与
满足
,
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a84a2aa0743a269c321435431079a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a2d2b2b666b03344637a73e05f5226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.三边均不相等的三角形 | B.等腰直角三角形 |
C.底边和腰不相等的等腰三角形 | D.等边三角形 |
您最近一年使用:0次