题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024533-54795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-32410.png)
(1)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-47201.png)
(2)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-16858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-36395.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-26725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-16858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-71276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-85119.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-95205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-16858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-79117.png)
解析
(1)先根据已知表达式
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024533-54795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-46127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024536-14543.png)
(2)在
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024536-14543.png)
解:(1)由已知
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024536-98816.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-26725.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024536-50589.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024536-33509.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024536-27585.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024537-54128.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024537-16521.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-16858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-71276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-85119.png)
又当
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024538-72921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-85119.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-95205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024534-16858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024535-79117.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024527-16437.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024527-18080.png)
A.1 | B.2 | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024520-91977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024520-17146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024521-95064.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024521-16605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024521-70183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024521-14879.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024521-72110.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024459-19396.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024459-12313.png)
A.函数![]() |
B.函数![]() |
C.函数![]() |
D.函数![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024452-65429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024452-43176.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024452-43176.png)
是 .
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024340-98339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024341-19377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024341-80288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024340-98339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024341-11210.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024342-22746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024340-98339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024342-95835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024340-98339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024342-34291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024342-83299.png)
立,则实数
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205024342-16465.png)
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