已知数列
满足
,
,若
,且数列
是递增数列,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f966272f7781790ff27e40db6b525253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7281fbec48e7028327e1ef1a08016d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560f436a69b7c20534e1a6a37da5cefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
2019高三下·全国·专题练习 查看更多[1]
(已下线)2019年5月2019届高三第三次全国大联考(新课标Ⅲ卷)-理科数学
更新时间:2019-05-15 16:56:25
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【知识点】 判断数列的增减性
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】等差数列
的前n项和为Sn,且
,
.记
,如果存在正整数M,使得对一切正整数n,
都成立.则M的最小值是_______
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570718491320320/1570718496669696/STEM/08089af1f8cb4c7297dd2488ec4a2549.png?resizew=33)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976bc615cd2f8ab1a81dff865bf762fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d86917c2d687554cfdf18ba91d35a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab75d2d784cc6dfeb6e62f24de76f3e.png)
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570718491320320/1570718496669696/STEM/24ef99b12c914f4b892299c0527d4f06.png?resizew=56)
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填空题-单空题
|
适中
(0.65)
解题方法
【推荐2】已知数列
满足
,
,则满足不等式
的
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea90754ca39a2133786cc40c7b66548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e643a16d2d53f05d8d4cb73496ec37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f996483b9361175b558041d056da7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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