已知等差数列
的公差为
,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bfe21c96489cb30c544d49ddb4c1c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25c5af755cbbc7458a3bc100f9fae02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd99206013b6bd36d64ef1a92f21944.png)
A.1980 | B.1981 | C.1982 | D.1983 |
更新时间:2024-05-18 17:26:02
|
【知识点】 等差数列通项公式的基本量计算
相似题推荐
单选题
|
较易
(0.85)
【推荐1】记
为等差数列
的前
项和.若
,
,则
的公差为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/f6c0df1b47f475ab13008fbadcbeef6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f9c10b2cf34143a490990cd968920d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.1 | B.2 | C.4 | D.8 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知1,
,
,7成等差数列,1,
,
,
,16成等比数列,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57483e04fd1840c87ac5325157149877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ff32af76d65731f199b41519f97158.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次