1 . 已知函数
与函数
的图象在区间
上有两个不同的交点,则实数k的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c461fd9a7a0450b82890f00233c18f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51917112bc823e62088c2c214870a62b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f909328384f9c52134243753d9c954ef.png)
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2020-03-16更新
|
636次组卷
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2卷引用:湖南省怀化市2020-2021学年高二上学期期末数学试题
2 . 已知数列
是公差不为0的等差数列,对任意大于2的正整数
,记集合
的元素个数为
,把
的各项摆成如图所示的三角形数阵,则数阵中第17行由左向右数第10个数为___________ .
![](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/cbf26b47a29f931511a9192c4c61c342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://img.xkw.com/dksih/QBM/2018/11/19/2079065466167296/2084461647192064/STEM/efe0068ba4354a488662a77f3a00baba.png?resizew=129)
您最近一年使用:0次