名校
解题方法
1 . 已知
的三个内角A,B,C所对的边分别为
则下列条件能推导出
一定为锐角三角形的是___________ .
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95563a79e3b68c597ae1e5167516ff88.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e3de1cda4504e4a0bf2667128ed339.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5531f1457710b245ab018de1ad2b078c.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95563a79e3b68c597ae1e5167516ff88.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e3de1cda4504e4a0bf2667128ed339.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5531f1457710b245ab018de1ad2b078c.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9a198f7af53ea5631c582ece061982.png)
您最近一年使用:0次
2022-04-09更新
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443次组卷
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2卷引用:北京市清华大学附属中学朝阳学校2021-2022学年高一3月质量检测数学试题