名校
解题方法
1 . 记
的内角A,B,C的对边分别为a,b,c,向量
,
,且
.
(1)求C;
(2)若
,求
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2ee7c0e0aeefad56886c9effb83321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b630b8dff65b88d18eedd77e5695746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
(1)求C;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1ec9c5eaed4c211a040a2a33fb7c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2022-05-23更新
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396次组卷
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5卷引用:河北省沧衡八校联盟2021-2022学年高一下学期期中数学试题