已知公差不为0的等差数列
的前
项和为
,且
成等比数列,
,记
,其中
表示不超过
的最大整数,如
,则( )
![](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/93633795bba1868384d1e5b6d8d4894b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e26faf2d524402fefa06823506d1971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b857cd30e2d8befcddfe229bf9775687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc83a6bd83758ea5d903a00e52809d5.png)
A.![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.![]() |
22-23高二下·辽宁本溪·阶段练习 查看更多[2]
更新时间:2023-04-15 15:42:17
|
相似题推荐
多选题
|
适中
(0.65)
名校
【推荐1】定义满足以下两个性质的有穷数列
为
阶“理想数列”:(1)
;(2)
,则以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d02a8555da4dbbc7820a50a95b071ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e624835e72a20a20965e9606eb79e3f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79041c64f68c27783df640cd9ea7999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312648be3907fc35057ae2137dffb3b7.png)
A.若![]() ![]() ![]() |
B.存在![]() ![]() |
C.若公差为正的等差数列![]() ![]() ![]() |
D.记![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
【推荐2】递增等差数列
,满足
,前n项和为
,下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60faf7fca74014fd3f98ef2e319d5db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.![]() | B.![]() |
C.当![]() ![]() | D.![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
【推荐1】在正项等比数列
中,公比为
,已知
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7470a2d5115e680e6f72a37cff0d628f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
解题方法
【推荐2】已知
的内角A,B,C的对边长a,b,c成等比数列,
,延长BA至
则下面结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8dcbd27e4b6086caae8a8fe5b8fce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbc29a42d7593967f182639a76503c6.png)
A.![]() | B.![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
解题方法
【推荐1】已知数列
满足
为
的前
项和.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/ec77609ce9d961416407c1ccc992c485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() ![]() | B.当![]() ![]() |
C.当![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
解题方法
【推荐2】已知数列
满足
,
,数列
的前2n项和为
,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/2b61c0ae3f33539807c9f9f55fa960fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877038025d6568e7d272632761d27d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9a0d7150fb24be3e28ef7f0e18be93.png)
A.数列![]() | B.数列![]() |
C.数列![]() | D.![]() |
您最近一年使用:0次