在
中,角
所对的对边分别为
,若满足
的三角形有两解,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad63a38199755ffcb187dd99da1129b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
21-22高一下·重庆九龙坡·阶段练习 查看更多[2]
更新时间:2022-04-06 19:01:16
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【知识点】 正弦定理判定三角形解的个数解读
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适中
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【推荐1】在
中,点
在线段
上,
,
.给出下列三组条件:①
,
的长度;②
,
的长度;③
,
的长度.其中能使
唯一确定的条件的序号为__________ .(写出所有符合要求的条件的序号)
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【推荐2】在
中,
,
,
,若用正弦定理解此三角形时有两个解,则
的取值范围是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1e93070a17e37f5cf938862cd3116e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1917716a49f0e1b23e58862a89d6ecf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810a2cc3f61a961c1196fbd0e11caabb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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