名校
解题方法
1 . 锐角
中,内角A、B、C的对边分别为a,b,c,S为
的面积,且
,
,则b的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e30588128b6dc48b905e5b33b5a32b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-09更新
|
1398次组卷
|
5卷引用:安徽省太和中学2022-2023学年高二上学期数学竞赛试卷
2 . 在周长为24的
中,
,则
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b02c51ce96d326f33c430cc884ea00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8eb37a4dd75318dcbd836395e575bd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知向量
,
,
与
的夹角为
,则直线
与圆
的位置关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa3a07feb63e86e2ea5d21026091199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28868e8a756bc61c1bf989ce47993f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260200d547998bcac50a4a491382e7f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d78f8724baa307a53451d9858f47fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88fa4dcedc2a49571d2e1ff71783fb31.png)
A.相切 | B.相交 | C.相离 | D.随![]() ![]() |
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2020-06-26更新
|
156次组卷
|
2卷引用:第二届高二试题(决赛)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
2019高三·浙江·专题练习
4 . 在
中,
的面积
,则
与
夹角的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b21608df399a30c28c80516f4628d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebcfa08e8efd5b6a94a72af2478b829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18eecc9135b568c133d8bebe6d18839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431c8b143595051d9465017a26060b61.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知
,若
是以O为直角顶点的等腰直角三角形,则
的面积等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64aaaefd34d8e6c9793f120436d883d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
A.1 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
2016-12-02更新
|
1096次组卷
|
3卷引用:2011年辽宁省瓦房店市五校高二上学期竞赛数学文卷