题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-90982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-38695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-41056.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-33964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-27403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-22041.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-88948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-57788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
(ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-70213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-90822.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-89132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-57788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-90822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-38379.png)
解析
试题分析:(1)记
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-50195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-90547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-90982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-28932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-68129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-62534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-27403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-22041.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-90982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-38695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-41056.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-33964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-74288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-42586.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-59321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-89132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-28238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-28445.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011702-27403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-22041.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-88948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-28030.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011707-29233.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011707-16946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011707-88115.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-57788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-57788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-70213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-90822.png)
试题解析:记
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-50195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-90547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-90982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-28932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-68129.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-62534.png)
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011707-56426.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-74288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011707-97983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-42586.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-59321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-89132.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-28238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-28445.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011708-51903.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011708-46795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011708-36405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-89132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-89132.png)
(2)(ⅰ)因为
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-88948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011708-42886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011709-75490.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011709-67462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-28030.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011705-62534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011706-28030.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011707-29233.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011707-16946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011709-66850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011709-92893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011710-79504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-57788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011701-38421.png)
(ⅱ)假设
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011710-55799.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011710-50681.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011710-49717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011711-46622.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011711-39814.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011711-78097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011711-86818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011712-30361.png)
正整数
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011703-90822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011704-38379.png)
核心考点
试题【已知是公差不等于0的等差数列,是等比数列,且.(1)若,比较与的大小关系;(2)若.(ⅰ)判断是否为数列中的某一项,并请说明理由;(ⅱ)若是数列中的某一项,写出】;主要考察你对等差数列等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011656-42141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011656-25929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011657-88942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011657-59756.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011657-72962.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011557-16796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011557-67416.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011558-71244.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011558-88905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011558-22195.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011558-18150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011559-37374.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011559-81261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011558-18150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011544-97523.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011544-32475.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011544-12275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011545-86121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011545-21489.png)
的通项公式
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011545-37034.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011518-34665.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011519-38449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011519-72334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011519-42968.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011519-90238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011519-38449.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011519-38053.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011519-38449.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011520-64169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011520-93959.png)
(3)若该数列中有一项是
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011520-53077.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011518-34665.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011359-39613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011400-47282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011400-35891.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191009/20191009011400-70184.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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