在
中,
,最大边长与最小边长之比为
,则最大内角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2317029a81a6d69d5f6f0ac35eb6f074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b93f6b649383439eaf24b72e04ed9a.png)
A.105° | B.60° | C.75° | D.90° |
更新时间:2020-02-22 11:23:09
|
【知识点】 正弦定理边角互化的应用解读
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单选题
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适中
(0.65)
解题方法
【推荐1】在
中,已知
,
,
,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d2902b908f481316d1004c5971712d.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐2】在
中,角
,
,
的对边分别为
,
,
,且
,则角B的大小是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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您最近一年使用:0次
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适中
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【推荐3】
的内角
,
,
的对边分别为
,
,
,且
,
,则下面四个选项中错误的是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82b85cd024d2e5a7b4e8048c21bdd57.png)
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A.![]() | B.![]() |
C.![]() | D.![]() |
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