解题方法
1 . 设数列
的前
项和为
,且满足
.
(1)求数列
的通项公式;
(2)解关于
的不等式:
;
(3)若
,求证:数列
前
项和小于
.
![](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/8e7914fdb68e1fbebc44e675e041e5a7.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082beb2f300cd6d28d2fbbc0709ec26f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135a6e44401b3e7b21fa1ad1442997fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478232c9a6b2db6020612a13afb350a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
您最近一年使用:0次
名校
解题方法
2 . 已知等差数列
的首项
,公差
,且
,设关于x的不等式
的解集中整数的个数为
.
(1)求数列
的前n项和为
;
(2)若数列满足
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3de6d314dd71900dc8020bb8ab0362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e45a6bd8de1e37fc3d7f21aac8557e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)若数列满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc704a8c18973da608f429452d60a279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
2024-04-08更新
|
369次组卷
|
2卷引用:四川省绵阳中学2024届高三高考适应性考试(一)数学(理科)试题
名校
解题方法
3 . 已知数列
的前
项和为
,且
,数列
满足
,记
,则下列说法正确的是( )
![](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/c3ddd6d99ad32dd7fdb1797d8cf94786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a88790ac4e5ac079f693779241afe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66943e70e9eb238e7c45d08833563367.png)
A.![]() |
B.![]() |
C.![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-05-08更新
|
303次组卷
|
3卷引用:辽宁省本溪市县级重点高中协作体2023-2024学年高二下学期期中考试数学试卷