已知函数
的图象过点
,且
,
.记数列
的前n项和为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f4293f980e9dba316c4ee7961e1e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57696b8ceb1cd08474302deda13e2cf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/864e534680bec06b5b7c02b687b60e0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4b5a382f920203b9ef307224ae641e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
21-22高二·全国·课后作业 查看更多[2]
更新时间:2022-08-28 14:58:50
|
【知识点】 裂项相消法求和
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】已知数列
满足
,
,
,
,若
恒成立,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6509b42c5dfa7f1992cb565f9d995243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89ddcfb9948ef4bb4da1b0e549cdfb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b7aa2031717118a88e995d70b45921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c16b5df55ae677b721c5401ca1a8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.0 | B.1 | C.2 | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】若执行如图所示的程序框图,输出
的值为
,则输入
的值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/dc29cee5-413c-4193-b346-a157ff1e1250.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb2927659fc5b2b6c5ce1d97786c171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/dc29cee5-413c-4193-b346-a157ff1e1250.png?resizew=156)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次