题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113457-52987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113457-52987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113457-25002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113457-52987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113457-51835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113457-52987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113458-87299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113458-50903.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113457-52987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113458-34866.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113450-29793.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113450-20904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113450-27593.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113450-69081.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113451-74082.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113451-77488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113451-89208.png)
A.![]() | B.![]() ![]() | C.![]() | D.![]() |
⑴常数列既是等差数列,又是等比数列;
⑵若直角三角形的三边
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113429-23942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113429-18418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113429-30361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113429-23942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113429-18418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113429-30361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113429-83558.png)
⑶若三角形
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113430-67885.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113430-23446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113430-53704.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113430-82355.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113430-47499.png)
⑷若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-56860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-41306.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-39878.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-56860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-36185.png)
⑸若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-56860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-41306.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113432-80721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113431-56860.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113415-46163.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113415-46816.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113416-18861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113416-79600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113416-46581.png)
⑴求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113415-46163.png)
⑵设
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113416-54461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113416-41399.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113417-66625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113417-19999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113355-51369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113355-28205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113355-58851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113356-82527.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113356-36800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113356-53785.png)
⑴求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113355-51369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113356-82527.png)
⑵设
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113356-22076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113357-85893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113355-28205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113357-56218.png)
⑵
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113357-42713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113357-57215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113355-28205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113358-31146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113358-19740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113340-74426.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113340-22117.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113340-30147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113341-48950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012113347-46448.jpg)
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