已知函数
,当
时,把函数
的所有零点依次记为x1,x2,x3,…,xn,且x1<x2<x3<……<xn,记数列
的前n项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a34bdecb8d76d5b17ce543d9db4710e.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca9b6339b3bf576d3916f6c7dc41285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c37d45c75f07c07b1d29965256822c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fda992dc86dd4ecb59e91de450a5f4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a34bdecb8d76d5b17ce543d9db4710e.png)
2022高三·全国·专题练习 查看更多[1]
(已下线)专题11 数列的综合应用-2022年高考数学一轮复习小题多维练(新高考版)
更新时间:2021-10-06 17:15:09
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【推荐1】已知函数
同时具有下列性质:①定义域为
;②
;③
,请写出一个符合条件的函数
的解析式______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
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【推荐2】函数f(x)=cosωx(ω>0)的图象与其对称轴在y轴右侧的交点从左到右依次记为A1,A2,A3,…,An,…在点列{An}中存在三个不同的点Ak,At,Ap,使得△AkAtAp是等腰直角三角形,将满足上述条件的ω值从小到大组成的数列记为{ωn},则ω2019=______ .
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【推荐1】对于任意
,令
为不大于
的最大整数,则函数
称为高斯函数或取整函数.若数列
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31efa9c1febde45d9a7bc75310b9017e.png)
,且数列
的前
项和为
,则
等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
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解题方法
【推荐2】“杨辉三角”是数学史上的一个伟大成就.在如图所示的“杨辉三角”中,去掉所有的数字1,余下的数逐行从左到右排列,得到数列
为2,3,3,4,6,4,5,10,…,则数列
的前10项和为_________ ;若
,则m的最大值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791934e7e66846668cca15682d55d7b7.png)
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【推荐1】某牧场今年初牛的存栏数为1200,预计以后每年存栏数的增长率为
,且每年年底卖出100头牛,设牧场从今年起每年年初的计划存栏数依次为
为
的前
项和,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36243198e5e20c56399e4ad5ac3c519.png)
___________ .(结果保留成整数)(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28555fa2f3a09261cb4e0305d390145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a4c5a43ea86b533bacd17bcf87477c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36243198e5e20c56399e4ad5ac3c519.png)
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【推荐2】数列
满足
,若
为数列
的前
项和,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780019495df34d40fff9d8f31bbf3e74.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217f8ece99b98fffa95be43a612a5b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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