名校
解题方法
1 . 已知函数
的图象上有一点列
,点
在
轴上的射影是
,且
(
且
),
.
(1)求证:
是等比数列,并求出数列
的通项公式;
(2)对任意的正整数
,当
]时,不等式
恒成立,求实数
的取值范围;
(3)设四边形
的面积是
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02a8c6e6c64820ad118f868089cbd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09b7981426207af195da5b05ee4f197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a2c27c29d41effabc45ce431e6f2d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7100f6a7df7e05c0107585cb068060fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0736457346c11dd6f458418a4f747ff.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fa575eec471d20667624bd4e9f7924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
(2)对任意的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c395021157c73ac8dcde32864f7e121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2c4141266b7e72446f0f51d3656baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)设四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1115b0ed47290e1a72adf1754eb8cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef70cd39654b5f000e4b617a270c570.png)
您最近一年使用:0次
2020-07-25更新
|
537次组卷
|
5卷引用:安徽省阜阳市太和第一中学2019-2020学年高一下学期期末数学试题
名校
解题方法
2 . 已知数列
的前
项和为
,且
.
(1)求数列
的通项公式;
(2)若数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/fadfaeb8c49a7b8ee498882361ae5779.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48254411ff33cc418c8baadf2d51de0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6828a1cf75f19bb74a0e0490bd65c168.png)
您最近一年使用:0次
2020-04-17更新
|
1133次组卷
|
4卷引用:安徽省阜阳市太和第一中学2019-2020学年高一下学期期末数学试题
安徽省阜阳市太和第一中学2019-2020学年高一下学期期末数学试题2020届金太阳高三4月联考数学(理)试题2020届河南广东等省高三普通高等学校招生全国统一考试4月联考数学(理)试题(已下线)专题16 数列放缩证明不等式必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)