题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-49093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-52665.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-89840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-52739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-46182.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-65676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-96818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-52815.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-14311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-52815.png)
A.4 | B.6 | C.5 | D.7 |
答案
解析
试题分析:令
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-42346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-89840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-52739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-14129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-18047.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-65813.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-46182.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-66694.png)
所以有穷数列
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-65676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-96818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-83736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-83736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-65676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-96818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-52815.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-14311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-57304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-49828.png)
点评:本题考查数列与函数的综合,考查导数知识的运用。其难点为构造函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-65813.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-89840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-65813.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-65676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-96818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-83736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193617-83736.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193615-71970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193615-21980.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193615-73547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193615-63908.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193605-93913.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193605-17942.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193605-71141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193605-30612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193606-24347.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193606-90235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193605-30612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193606-32739.png)
(Ⅰ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193605-30612.png)
(Ⅱ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193605-30612.png)
(Ⅲ)若
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193606-25675.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193607-52725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193607-22497.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193601-23751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193601-23751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193602-91184.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193601-23751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193602-56580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193602-74832.png)
A.![]() | B.![]() | C.![]() | D.![]() |
①函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193557-42325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193557-42078.png)
②奇函数的图象一定通过直角坐标系的原点;
③函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193558-81446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193558-38183.png)
④若函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193558-17701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193558-22366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193558-69350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193559-62422.png)
⑤设函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193559-20037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193559-82334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193559-69311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193559-36949.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193559-82334.png)
其中正确命题的序号是 .(填上所有正确命题的序号)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193552-36867.png)
A.(0,1) | B.(1,2) | C.(2,3) | D.(3,4) |
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