已知
,其中
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0155b7a98a9d05b69d0fa258f4cd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df40742ebe5fca9ceb7a2e58afc1c007.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee20050c86d518471daec1746712133.png)
22-23高一上·河南新乡·期末 查看更多[7]
河南省新乡市卫辉市第一中学等2校2022-2023学年高一上学期期末数学试题(已下线)第09讲 5.5.1.2 二倍角的正弦、余弦、正切公式-【帮课堂】(已下线)高一上学期期末复习【第五章 三角函数】(基础篇)-举一反三系列(已下线)第13讲:三角恒等变换综合性质-《考点·题型·难点》期末高效复习福建省莆田八中、莆田侨中2023-2024学年高一上学期期末联考数学试卷云南省开远市第一中学校2023-2024学年高一下学期3月月考数学试题湖北省天门市江汉学校2023-2024学年高一下学期3月月考数学试题
更新时间:2023-09-19 15:42:32
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【推荐1】如图,圆内接四边形ABCD中,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/5/28/2989281157341184/2991232127631360/STEM/98191320-8755-4476-8188-d3abc56ecf42.png?resizew=250)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b81e00a84249cad994cb11deac934d.png)
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(1)求边
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(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2cf0e95fdf1fd8a5b01d3dfd905e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e19f18d1cada47c668e26f4df04d70.png)
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【推荐1】已知
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【推荐2】在
中,角
所对的边分别为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef7f9bac5fe2cd409bbb800859c0044.png)
(1)求
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(2)若
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【推荐1】在
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(2)在下面两个条件中选择一个作为已知,使
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5d18f8a578a47e2f2de8bc3f424cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138b4d5c0dbbb292b6614dc915075420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e74fc7479e44217bfa27dbd75992b51.png)
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【推荐2】已知函数
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条件①:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d8ea3b93b39a635a596d6954bfc123.png)
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注:如果选择多个条件组合分别解答,则按第一个解答计分.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/21/0a19a9cd-1800-4953-9ff6-ce0817cf1e89.png?resizew=182)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c41a9df16966f1acc6695e33d28383d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3f7f762131c77a3c8440b4a3bc1d12.png)
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