在
中,角A、
、
的对边分别为
、
、
,则以下结论错误的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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)
A.若![]() ![]() |
B.![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() |
更新时间:2016-12-04 19:04:31
|
【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)
名校
解题方法
【推荐1】在
中,内角
,
,
所对的边分别为
,
,
,若
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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![](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/b4d5f963c3485870c100b3f09c9346dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402f1010e94be78552ed4c45548b1b8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐2】在△ABC中,内角A、B、C的对边长分别为a、b、c.已知
,且
,则b的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b577879dbe407e11b603ef2250aaa3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e626476d163a5e8735831e6bc345685e.png)
A.2 | B.![]() | C.4 | D.![]() |
您最近一年使用:0次