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22-23高一下·江苏南京·阶段练习 查看更多[6]
江苏省南京市中华中学2022-2023学年高一下学期5月月考数学试题江苏省连云港市灌南高级中学2022-2023学年高一下学期期末模拟数学试题河南省南阳市方城县2022-2023学年高一下学期期末数学试题(已下线)模块二 专题3《解三角形》单元检测篇 A基础卷 (苏教版)(已下线)模块一 专题3 解三角形(苏教版)(已下线)专题01 平面向量及其应用(1)-期末真题分类汇编(新高考专用)
更新时间:2023-06-13 13:07:01
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【推荐1】在
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【推荐2】已知
中角
,
,
所对的边分别为
,
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为边
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为
的角平分线,若
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【推荐1】我国南宋著名数学家秦九韶在他的著作《数书九章》卷五“田域类”里有一个题目:“问有沙田一段,有三斜,其小斜一十三里,中斜一十四里,大斜一十五里,里法三百步,欲知为田几何.”这道题讲的是有一个三角形沙田,三边长分别为13里,14里,15里,假设1里按0.5 km计算,则该沙田的面积为______ km2.
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【推荐2】在
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