在锐角三角形
中,A、B、C成等差数列,
,则
的取值范围______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
2020高三·全国·专题练习 查看更多[1]
(已下线)考点17 正余弦定理(练习)-2021年高考数学复习一轮复习笔记
更新时间:2020-08-18 16:52:10
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