在
中,内角A,B,C所对的边分别为a,b,c,设
的面积为S,
.
(1)当
时,若
,求角A;
(2)当
时,求
的最大值.
![](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/813102255fea6c017963c7b3529ff450.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558e11d700481dc414d5d073b4b88a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36ec31cfd615abfbee3ed2f4a1d8883.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386e8773a050ae22a6775478fb14c44c.png)
2023·全国·模拟预测 查看更多[1]
(已下线)2024届数学新高考Ⅰ卷精准模拟(六)
更新时间:2023-12-20 14:11:35
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【推荐1】已知
的内角A,B,C所对的边分别为a,b,c,
.
(1)求B;
(2)若点D在AC上,且
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309f537e5bd6c092d0017bb1e4d3cc83.png)
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【推荐2】在
中,角
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7eb7c88b487f83ce1a3573505c6d6a.png)
(1)求角A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ca820a456491348e72587e4fe10bc6.png)
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【推荐1】某公司生产一种儿童玩具,每年的玩具起步生产量为1万件;经过市场调研,生产该玩具需投入年固定成本
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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(1)写出年利润
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826308511448f7b791edf4199c690768.png)
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【推荐3】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18781f9097bf77e85c6b633658fa7cd4.png)
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【推荐2】已知函数
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