等比数列
中,
,前三项和
,则公比
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8c45e4c4ab30665338dd87a2258f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe6fc0260d23e183697382007f8d829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.1 | B.![]() | C.1或![]() | D.![]() ![]() |
更新时间:2016-12-03 16:36:22
|
相似题推荐
单选题
|
较易
(0.85)
解题方法
【推荐1】设函数
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a815a1bd24c9ae3f448ab116b2a1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a191ec085252e093029d03be183bc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】由函数
的图象与
轴围成图形的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d514dac73ed889de3f0720eda302e813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】在正项等比数列
中,
,则数列
的公比为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b75b181ed9f78a0ed14ba951d400689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.![]() | B.4 | C.![]() | D.2 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】在等比数列
中,
,则前7项的积等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa76e3527da6a6f75fe57763808a187.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次