名校
解题方法
1 . 已知数列
的前n项和
,满足
,则
=( )
![](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/2814be664a8e81cdbf87e24c11eb985d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da4cd81500bdb43118150dbdb1541e6.png)
A.72 | B.96 | C.108 | D.126 |
您最近一年使用:0次
2023-01-02更新
|
1009次组卷
|
5卷引用:重庆市第三十七中学校2022-2023学年高二上学期期末数学试题
名校
解题方法
2 . 设
,圆
:
(
)与
轴正半轴的交点为
,与曲线
的交点为
,直线
与
轴的交点为
,若数列
的通项公式为
,要使数列
成等比数列,则常数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe977dbfe794d737902609918f4dec63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61c3568303a6b517a1b9ff47f154389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e60016c6a4311390d07afa8bf4b3963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bebeab6759b4ed06605ff231b1b88c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839594b48d5ff3bf74ed9d5a2792b13a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2547e4661f2f10ffda5267f0d3d336e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fd18a909cecbaee7115d6b15631d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4e670976fdc99871e65c9396f5176d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c16833af5bb003e20c6c838a0976a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.2 | B.1 | C.1或2 | D.2或4 |
您最近一年使用:0次