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1 . 古希腊数学家欧几里得所著《几何原本》中的“几何代数法”,很多代数公理、定理都能够通过图形实现证明,并称之为“无字证明“如图,
为线段
中点,
为
上的一点.以
为直径作半圆,过点
作
的垂线,交半圆于
.连结
,
,
,过点
作
的垂线,垂足为
.设
,
,则图中线段
,线段
,线段________
;由该图形可以得出
,
,
的大小关系为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3d296e0d7154a170cb7d3ae42989b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bcccda6e75578c160552bcb1d7f160b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ce2f12cd473b0877cb01872ec45141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a24490af6cdebc539613da0a98d762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26234bb9c659eb48da0247dd6a465d65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/3143184d-bc71-40e6-a813-5901a2a2c546.png?resizew=210)
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6卷引用:宁夏银川市第六中学2023-2024学年高一上学期第一次月考数学试题
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2 . 已知
,用数学归纳法证明
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8c81b918419fea27b76d8292da429c.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f439d411c9198114a08908fd292b80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ae822627874c0972922d2e8771869e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8c81b918419fea27b76d8292da429c.png)
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11卷引用:宁夏回族自治区2023-2024学年高二上学期期末测试数学训练卷(三)(范围:选择性必修第二册 4.1-5.2.2)
宁夏回族自治区2023-2024学年高二上学期期末测试数学训练卷(三)(范围:选择性必修第二册 4.1-5.2.2)2016-2017河北武邑中学高二上周考9.25文数学试卷2016-2017学年河南省南阳市第一中学高二下学期第一次月考(3月)数学(理)试卷湖南省长郡中学2017-2018学年高二上学期期末考试数学(文)试题江苏省扬州市邗江中学2018-2019学年高二下学期期中考试数学(理)试题人教A版(2019) 选择性必修第二册 过关斩将 第四章 数列 4.4 数学归纳法(已下线)4.4 数学归纳法 A基础练(已下线)专题4.5 数学归纳法(B卷提升篇)-2020-2021学年高二数学选择性必修第二册同步单元AB卷(新教材人教A版,浙江专用)(已下线)【新教材精创】5.5 数学归纳法 -A基础练(已下线)4.4数学归纳法C卷广西钦州市第四中学2021-2022学年高二下学期3月月考数学试题(理科)