题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053458-39139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053458-86717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053458-81886.png)
A.15 | B.45 | C.75 | D.105 |
答案
解析
试题分析:
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053459-41922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053458-86717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053459-68934.png)
点评:若
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053459-25571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053459-21833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053459-31505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053500-32326.png)
核心考点
举一反三
已知函数f(x)=
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053433-36999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053434-18941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053434-47911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053434-89459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053434-37688.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053434-76309.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053435-25533.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053435-98114.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053434-47911.png)
(2)记
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053435-49160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053435-24351.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053436-85731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053425-21330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053426-18330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053426-98925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053425-21330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053426-16991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053426-78568.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053357-92217.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053357-53780.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053357-89423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053357-92217.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053357-94893.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053358-20280.png)
(2)令
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053358-29524.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053358-36438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053359-22063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053359-46691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053337-38686.png)
1
3 5
7 9 11
………………………
……………………………
设
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053343-21039.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053343-72595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053343-11299.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053343-24007.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053344-86012.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053344-22868.png)
(2)若记三角形数表中从上往下数第
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053343-24007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053344-47083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053344-49550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053313-26256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191010/20191010053323-20331.png)
A.14 | B.13 | C.12 | D.11 |
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