【题文】(本题满分12分)(1)计算:(2)计算:
【题文】(本题满分12分)(1)计算:(2)计算:
题型:难度:来源:
【题文】(本题满分12分)
(1)计算:
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162208-13934.png)
(2)计算:
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162208-73582.png)
答案
【答案】15.解(1)原式=
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162209-14263.png)
3分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162209-46090.png)
4分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162209-25332.png)
5分
="6 " 6分
(2)原式=
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162210-92769.png)
7分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162211-74392.png)
9分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162211-77955.png)
10分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162211-51750.png)
11分
="2 " 12分
解析
【解析】略
举一反三
【题文】化简
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162158-72406.png)
的结果是( )
【题文】已知
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162109-59924.png)
,则
a、b、c的大小关系是( )
【题文】函数
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162102-25968.png)
的定义域是( )
【题文】已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162035-82768.png)
,且
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328162035-15658.png)
则a的取值范围是
【题文】设a=
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328161109-87315.png)
,b=
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328161110-14304.png)
,c=
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328161110-96097.png)
,那么( )
A.a<b<c | B.b<a<c |
C.a<c<b | D.c<a<b |
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