题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203437-24447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203437-76179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203438-38567.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203438-61236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203438-23875.png)
A.55 | B.56 | C.65 | D.66 |
答案
解析
试题分析:由题意,得
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203438-36710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203439-39484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203439-42045.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203439-68557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203439-35883.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203310-83436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203310-25497.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203310-41402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203042-73429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203042-96137.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203043-47202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203043-12244.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203043-91772.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203043-56287.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203044-80195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203044-12341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203044-47839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008203043-47202.png)
A.无解 | B.6 | C.2 | D.无数多个 |
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-13610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-16559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-68129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202642-18268.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202642-36434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202642-61198.png)
且
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202642-96910.png)
(1)求数列{
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-13610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-16559.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202643-29145.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-13610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-16559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202641-68129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202643-29145.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202533-56607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202533-34056.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202533-64585.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202533-36765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202534-56001.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202534-78162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202534-73546.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202534-73849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202535-46056.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191008/20191008202535-46133.png)
A.2 | B.6 | C.无解 | D.无数多个 |
A.1 | B.2 | C.3 | D.4 |
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