已知下列数列
的通项
,画出数列的图象,并判断数列的增减性.
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d45c6fc165f2fef7453ddff9c6cc66.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12059d1dac926a235ccd40c3b61b1b6.png)
22-23高二·全国·随堂练习 查看更多[4]
北师大版(2019)选择性必修第二册课本习题第一章1.2 数列的函数特性(已下线)第01讲 4.1数列的概念(1)(已下线)1.2 数列的函数特性6常见考法归类-【帮课堂】2023-2024学年高二数学同步学与练(北师大版2019选择性必修第二册)北师大版(2019)选择性必修第二册课本例题1.2 数列的函数特性
更新时间:2023-10-10 21:27:43
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【知识点】 判断数列的增减性
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解答题-问答题
|
较易
(0.85)
【推荐1】已知数列
满足:
,
,
,
.
(1)若
,且数列
为等比数列,求
的值;
(2)若
,且
为数列
的最小项,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206928bebf985d2252e41b9bdb771ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d726666f99a5a41dd673a2330e377b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f77aadf95fb6c3765ea4a26ece3e3e7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b711804687540cdcfc5d2c2b42378b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194b8ab194c7d299d5c3e0f09ec18384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】已知数列的通项公式为
.
(1)0.98是不是这个数列中的一项?
(2)判断此数列的单调性,并求最小项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b97764daef03cac8b9e894376f5a432.png)
(1)0.98是不是这个数列中的一项?
(2)判断此数列的单调性,并求最小项.
您最近一年使用:0次