名校
解题方法
1 . 为提升城市旅游景观面貌,城建部门拟对一公园进行改造,已知原公园是直径为
米的半圆,出入口在圆心
处,
点为一居民小区,
距离为
米,按照设计要求,取圆弧上一点
,并以线段
为一边向圆外作等边三角形
,使改造之后的公园成四边形
,并将
区域建成免费开放的植物园,如图所示.
![](https://img.xkw.com/dksih/QBM/2021/7/10/2761299804012544/2777296525869056/STEM/0d40820b-1c0c-45be-9104-baa37f9a4871.png?resizew=265)
(
)若
时,点
与出入口
的距离为多少米?
(
)
设计在什么位置时,免费开放的植物园区域
面积最大?并求此最大面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dd550e1ad9bbf01687ffb4aab788ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dd550e1ad9bbf01687ffb4aab788ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://img.xkw.com/dksih/QBM/2021/7/10/2761299804012544/2777296525869056/STEM/0d40820b-1c0c-45be-9104-baa37f9a4871.png?resizew=265)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb92c95de837a21894048a4f27b4c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
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2021-08-02更新
|
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8卷引用:吉林省长春市长春吉大附中实验学校2022-2023学年高一下学期4月月考数学试题
吉林省长春市长春吉大附中实验学校2022-2023学年高一下学期4月月考数学试题山东省日照市2020-2021学年高一下学期期末校际联合数学试题(已下线)第6章 平面向量及其应用(压轴30题专练)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)重庆市第一中学校2022-2023学年高一下学期第一次月考(3月)数学试题江苏省徐州市2022-2023学年高一下学期期中数学试题陕西省延安中学2022-2023学年高一下学期6月月考数学试题(已下线)第六章 平面向量及其应用(基础、典型、易错、压轴)分类专项训练(3)河南省洛阳市第四高级中学2022-2023学年高一下学期5月月考数学试题
2 . 设数列
的各项均为正数,它的前
项的和为
,点
在函数
的图像上;数列
满足
.其中
.
(1)求数列
和
的通项公式;
(2)设
,求证:数列
的前
项的和
(
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c552e8d5acd7d998b050bf298aaaf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e48bf189eac63fda016886004dc419e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a9a1e683ab823e4c7e9b90a75127c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851c8763f6700bccac95949fc0d316f7.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c2a5f8ec179b72b201c3c0a670612a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c88a7ef007c78a93e33bd77c4396626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f008d63a67d7fc2a475b60f788ce855a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851c8763f6700bccac95949fc0d316f7.png)
您最近一年使用:0次
2016-12-03更新
|
1616次组卷
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4卷引用:2016届吉林省长春外国语学校高三上第二次质检文科数学试卷