名校
解题方法
1 . 在数列
中,
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a0eecb5b800fce9ae10aed86ffee62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98a81627bf13922cf544e39cd1975cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b75e88694f07123594b24a11a3b723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
2020-09-08更新
|
520次组卷
|
8卷引用:【市级联考】广西桂林市、崇左市2019届高三下学期二模联考数学(理)试题
名校
解题方法
2 . 已知数列
满足
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424edbd0bfe737cbb80c87d3c17ff560.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4775666a3fd90a5623efeac883aeec.png)
您最近一年使用:0次
2017-06-03更新
|
463次组卷
|
2卷引用:广西桂林市桂林中学2017届高三5月全程模拟考试数学(理)试题
名校
解题方法
3 . 已知数列
满足
,且
,则数列的前
的前
项和
=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1895fd3a91f5b5cba61019f67ce016dd.png)
![](https://img.xkw.com/dksih/QBM/2015/1/14/1571959911882752/1571959917273088/STEM/d7d4f913b45c4ba68e28c20b5fa9d61b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05201ef79a5d5904f492845396fb5470.png)
A.-2 | B.0 | C.4 | D.6 |
您最近一年使用:0次
2016-12-03更新
|
278次组卷
|
2卷引用:2015届广西桂林十八中高三上学期第四次月考文数学试卷
解题方法
4 . 已知数列
满足
,且
,则数列的前
的前
项和
=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1895fd3a91f5b5cba61019f67ce016dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b187808e26b4ee67adadd65fc60903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05201ef79a5d5904f492845396fb5470.png)
您最近一年使用:0次