在
中,内角
,
,
所对的边分别为
,
,
,且满足
,
,
,三角形的面积为
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/aa1466856bf2570685d3629c1f813748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18cb1da93d561d275058218eb7ac808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56667aabbe787eb1c3189d487d203e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39344ad1a4a45a1023de6b5bdda76546.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7738b7db4fdbf4cf4b22b6f99bdcc0c5.png)
2023·全国·模拟预测 查看更多[1]
(已下线)2024届高三数学信息检测原创卷(二)
更新时间:2023-12-27 10:25:46
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适中
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【推荐1】已知向量
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(2)定义函数f(x)
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(1)若x≠kπ
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
(2)定义函数f(x)
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适中
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【推荐2】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852fa088d3b348c8a418ab5c3b977ab4.png)
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【推荐1】在
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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
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(2)若
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适中
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【推荐2】记△
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(1)求B;
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【推荐1】已知向量
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(Ⅱ)在△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c303da0b5fcfbe8f97a64bf4c636b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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解题方法
【推荐2】在
中,角
,
,
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,
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(2)已知
,
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b35fd69c0b28f0dcc2610b422d96ec.png)
(2)已知
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适中
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名校
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【推荐3】第31届世界大学生夏季运动会,是继2001年北京大运会、2011年深圳大运会之后,中国大陆第三次举办世界大学生夏季运动会,也是中国西部第一次举办世界性综合运动会.共设篮球、排球、田径、游泳等18个体育项目.届时将有来自约170个国家和地区的1万余名运动员及官员赴蓉参加.现某学校决定将一个直角三角形的空地划分为多个部分,为该校运动员打造一个训练场地.已知直角
中,
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/14/ca96b2e2-128b-4c1b-a583-ef1bcd991d6d.png?resizew=235)
(1)求方案①中折线跑道TA,TB,TC的长度之和;
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/14/ca96b2e2-128b-4c1b-a583-ef1bcd991d6d.png?resizew=235)
(1)求方案①中折线跑道TA,TB,TC的长度之和;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c495b8fd7f7bb21c177c9d50fbf6919.png)
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