在锐角
中,它的内角A,B,C的对边分别为a,b,c,且
.
(1)求证:
;
(2)若
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a8d7892f9638c3037da7c9bb1e63ce.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b79062aa737be48a4100cb018a6910.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08cd45814ccadde068fa1e87c786db3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72850427e83ff19a24305783e080b280.png)
22-23高三上·山东东营·阶段练习 查看更多[2]
更新时间:2022-12-13 22:05:20
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问题:是否存在
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【推荐2】在
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(2)
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【推荐1】
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(1)证明:
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(2)若
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【推荐2】在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(2)若
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【推荐1】如图,在同一平面上,
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(1)若点
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501ec3fceb2d512eb3029ceb2047ce73.png)
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【推荐2】已知函数
.
(1)当
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(1)当
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(2)已知锐角三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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【推荐3】如图所示的四边形ABCD中,已知
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(1)用θ表示h的解析式;
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的最大值.
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![](https://img.xkw.com/dksih/QBM/2020/5/14/2462454849691648/2462519353352192/STEM/96c4098436ba4916adaa3c97766b5387.png?resizew=136)
(1)用θ表示h的解析式;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6151fb896230f2579d516af4c67e634a.png)
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