已知正项数列
是递增的等差数列,
是公比为
的等比数列,且满足
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fe0f4e8a80a2840c0f6929a8a6351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0426eb784f9c387f6a0d2e7e21a11118.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-26 22:14:45
|
相似题推荐
多选题
|
适中
(0.65)
解题方法
【推荐1】已知数列
有无限项且满足:
,其中
为大于0的常数,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1d44deecad59c86488efe1be64070a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.存在![]() ![]() |
D.任意![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
解题方法
【推荐2】已知公差不为0的等差数列
的前n项和是
,
,
,
成等比数列,且
,则下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77311d40ef50a900cb46680f917f0d7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d93c1ae7b22099a5d4c1c4241e5ca18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547886abee1a603e275c6e808fb5b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310ab561f7013c8e9a9f784a9e21a271.png)
A.![]() ![]() ![]() |
B.数列![]() |
C.![]() ![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
【推荐1】以下四个命题中,真命题的是( )
A.若数列![]() ![]() |
B.若等差数列![]() ![]() ![]() |
C.若等差数列![]() ![]() ![]() ![]() |
D.若等比数列![]() ![]() ![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
【推荐2】已知数列
为等差数列,其前n项和为
,且
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827fc3b0749ade1191f09b38a96e69de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c5abfd188bc5ca0322ec4a5a1bb053.png)
A.![]() | B.公差![]() |
C.当![]() ![]() | D.使![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
【推荐1】已知等比数列
,公比为
,其前
项积为
,并且满足条件:
,
,
,则下列结论中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa81d00805e5be4845c619037f149d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25594467198d151eead3e9eae0e9b934.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
解题方法
【推荐2】将
个数排成n行n列的一个数阵,如图:该数阵第一列的n个数从上到下构成以m为公差的等差数列,每一行的n个数从左到右构成以m为公比的等比数列(其中
).已知
,
,记这
个数的和为S.则下列结论正确的有( )
……![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed1412fc99b8d3bf7190af663d23344.png)
……![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07f7a46323e7630dd8cd5cffcb11a5d.png)
……![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f2fa5d1e2f6118ea97b390dcfaf293.png)
……
……![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c06519b37bebc4d638da4efa8a6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c20bc8da04fbb4bfea4e412274dde2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b73ec6f2aef5440b1b689fe74a8da96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/263c19344156874677b83c6067eae8f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e76d1d8e50dda4d50229a8a20c57e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e7b23fd74e3cf89ac541cb7a5d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed1412fc99b8d3bf7190af663d23344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc29ee719feeedfbc8c529cf11348abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e11a5b70e1e2e685d1783a4707872e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681d2c881109c10aca287612a64312b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07f7a46323e7630dd8cd5cffcb11a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a555e932cee7a505419ca454e4d1a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498d357985304a737e7a01272ebbcf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4b25db4e5f4a3743476ae088720fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f2fa5d1e2f6118ea97b390dcfaf293.png)
……
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c152d0a3bf4cd86a4984b780ad24dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07f7a46323e7630dd8cd5cffcb11a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f2fa5d1e2f6118ea97b390dcfaf293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c06519b37bebc4d638da4efa8a6238.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1】在正项等比数列
中,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0748c346ed88f98e424de8edf278325.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】设等比数列
的公比为
,其前
项和为
,前
项积为
,且
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91404898177d5d7ec03abcce79f74a1a.png)
,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/9aa8a716a31b0f51b70fdf9bdb257909.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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473e057dcbea5877b8af2bc3c5c0652a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91404898177d5d7ec03abcce79f74a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328dfd1ba6606b6e944158e476adefbf.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
多选题
|
适中
(0.65)
名校
【推荐3】下列说法正确的是( )
A.等差数列![]() ![]() ![]() ![]() ![]() ![]() |
B.数列![]() ![]() ![]() ![]() ![]() ![]() |
C.等差数列![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.正数等比数列![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次