解题方法
1 . 已知数列
的前
项和
满足条件
.
(1)求证:数列
成等比数列;
(2)求通项公式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/059c130fc5d498b1353e12d69f6dc94d.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)求通项公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
您最近一年使用:0次
名校
解题方法
2 . 已知定义在
上的函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111f2f98aeda48d93116541bac954f2e.png)
(1)试判断当
时函数
的单调性,并用定义证明;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111f2f98aeda48d93116541bac954f2e.png)
(1)试判断当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab87accf1942ab80def96d12ef173163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c637be6d14dc874ccefadd9573d62d25.png)
您最近一年使用:0次
2020-12-08更新
|
593次组卷
|
2卷引用:重庆市巫山中学2020-2021学年高一上学期第二次月考数学试题