题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231413-27618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231414-73938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231414-45096.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231414-34967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231414-45028.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
点拨:要满足条件,需要在每个区间上单调递增且
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231416-40958.png)
解答:由题意知应满足:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231416-85559.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231416-72084.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231416-71896.png)
得:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231416-41071.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231342-34881.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231342-71700.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231342-52322.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231342-31628.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231343-28961.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231343-43498.gif)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231342-34881.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231343-14151.gif)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231343-55294.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231344-11537.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231344-68507.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231342-71700.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231344-71790.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231344-89516.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231345-74500.gif)
已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231328-12535.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231329-63224.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231329-87548.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231329-38217.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231329-32403.gif)
⑴求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231328-12535.gif)
⑵是否存在
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231330-63570.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231330-85518.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231330-99992.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231330-20788.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231330-97849.gif)
⑶在
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231331-19976.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231331-55282.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231331-88505.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231331-20445.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231331-14052.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231332-18712.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231332-99854.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231330-97849.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231332-97906.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231331-55282.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231331-55282.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231332-18712.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231332-99854.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231330-97849.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231306-92327.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231306-43869.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231306-65775.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231307-24803.gif)
满足
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231307-46957.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231307-78475.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231306-92327.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231307-82338.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231253-97879.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231253-66320.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231254-35718.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231254-40864.gif)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231253-97879.gif)
(2)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231254-22733.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231254-80058.gif)
数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231254-67551.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231254-84509.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231254-67551.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231253-66320.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231255-81634.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231255-65864.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231255-65864.gif)
(3)若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231255-77260.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231255-65864.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231255-73305.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231255-29378.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012231256-98185.jpg)
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