名校
1 . 当直线y=k(x-2)+4和曲线y=
有公共点时,实数k的取值范围是________ .
![](https://img.xkw.com/dksih/QBM/2017/2/16/1625393393500160/1626220946538496/STEM/abea807692784643b67e7023910095b3.png?resizew=43)
您最近一年使用:0次
名校
2 . 已知数列
的前
项和构成数列
,若
,则数列
的通项公式
________ .
![](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/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/944ec533d52cab5cab4969ef04a2e2a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
2016-12-04更新
|
537次组卷
|
3卷引用:陕西省西安市长安区第一中学2016-2017学年高二下学期期中考试数学(文)试题
11-12高二下·山西临汾·期中
名校
3 . 设
,函数
,其导函数
是奇函数.若曲线
的一条切线的斜率为
,则切点的坐标为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20307753572f454e75fad537c2abe045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
您最近一年使用:0次