记
的内角
所对边分别为
,已知
.
(1)证明:
;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfbbd220feb8ae5ddedd7c34365910f.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428d8ba5d74557ac0660343e61b3bd8f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32f2d4d1d2c16c54b2caef17840bfcb.png)
2024·全国·模拟预测 查看更多[4]
(已下线)2024南通名师高考原创卷(三)江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(八)(已下线)考点17 解三角形中的最值问题 --2024届高考数学考点总动员【练】(已下线)重难点3-2 解三角形的综合应用(8题型+满分技巧+限时检测)
更新时间:2024-01-14 18:37:04
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【推荐1】在
中,
分别是角
所对的边,已知
,
,且
.
(1)求角
的大小;
(2)若
,且
的面积为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
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(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
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【推荐2】在
中,角
,
,
所对的边分别是
,
,
,且
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(1)若
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;
(2)若
,且
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的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744c2d9b16152571fef1fd5600092358.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f743665df0769d83824d3215e119a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdc434f156b4b99d9fa56c2c6972928.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118245da8b93a81ed9348e80701179f3.png)
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【推荐1】如图已知
是一条直路上的三点,
,
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处看见塔在北偏东
,在
处看见塔在正东方向,在
处看见塔在南偏东
,求塔
到直路
的最短距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61322bc59ed9c2419acf31d42ce4d17f.png)
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【推荐2】在
中,角
所对的边分别为
,
,
.
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;
(2)若
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的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd61c0bf2cd8a3e8279a46a6bf62c31.png)
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(2)若
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【推荐1】已知函数
,
.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9e5c2f3e134ee0bb885fdc71c99c49.png)
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(1)若
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(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e357538192b0086515ca082025dad9b8.png)
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【推荐2】某公司经过调研知:某产品年产量最大为
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件时另需投入可变成本
(单位:万元),若
,每件产品的售价为1万元,且生产的产品能够全部销售完
(1)写出年利润
(单位:万元)关于年产量
的函数解析式;
(2)当该产品的年产量为多少时,公司所获利润最大?最大利润是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dadc63e6e33743ce590ed968948a5a58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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(2)当该产品的年产量为多少时,公司所获利润最大?最大利润是多少?
您最近一年使用:0次