题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120509-49058.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120509-21461.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120510-11949.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120509-49058.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120509-21461.png)
故函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120510-62207.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120509-21461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120510-11949.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120500-19473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120500-54814.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120500-95000.png)
(1)求a、b的值;
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120500-40232.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120501-17791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120501-92030.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120450-11358.png)
(1)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120450-15721.png)
(2)若对任意的x>0都有
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120450-86350.png)
(3)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120450-44513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120442-90685.png)
(I)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120442-22303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120442-65138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120442-65138.png)
(Ⅱ)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120442-65138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120443-82274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120443-96946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120435-52545.png)
(I)讨论函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120436-33817.png)
(Ⅱ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120436-32596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120436-33817.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120436-82895.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120423-75790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120423-70851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-52128.png)
(1)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-64617.png)
(2)已知结论:若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120423-75790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-79712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-34132.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-14387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-21349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-60951.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120424-67507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120425-48056.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120425-32735.png)
(3)已知正数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120425-99705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120425-50144.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120425-45461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120426-89760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120426-56394.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120426-91133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120426-95996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018120426-37468.png)
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