在钝角三角形ABC中,a=1,b=2,则边c的取值范围是( )
A.![]() | B.![]() |
C.1![]() ![]() ![]() ![]() | D.![]() ![]() |
更新时间:2020-05-20 20:43:12
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相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】在
中,角A,B,C所对的边分别为a,b,c,若
,当
面积最大时,此时的
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd94055f052d5b6317169a9e286c473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.直角三角形 | B.钝角三角形 |
C.等边三角形 | D.不能对形状进行判断 |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐2】设
,
,
分别为
内角
,
,
的对边.已知
,
,则
( )
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](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/fa9f29383885f085b64b7091e1cd5884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eecaac7683a6808d2f3b58d7350db330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c59beadd1aae5c5ae24ef7bc007e02.png)
A.5 | B.![]() | C.![]() | D.![]() |
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