【题文】计算下列各式:(1); (2)
【题文】计算下列各式:(1); (2)
题型:难度:来源:
【题文】计算下列各式:
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174457-50038.png)
; (2)
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174457-41873.png)
答案
【答案】(1)原式
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174458-12878.png)
……………2分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174458-23345.png)
……………4分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174458-45423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174458-38056.png)
……………………6分
(2)原式
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174459-79684.png)
………8分
=
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174459-43852.png)
………………………………10分
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174459-23996.png)
解析
【解析】略
举一反三
【题文】函数
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174258-56236.png)
的值域为
.
【题文】若
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174233-31295.png)
,
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174233-66292.png)
,则 ( )
【题文】函数
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174128-85060.png)
(常数
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174129-60143.png)
且
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174129-22373.png)
)图象恒过定点P,则P点的坐标为
.
【题文】已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174122-92774.png)
,那么
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328174122-12350.png)
的值为
【题文】计算
![](http://img.shitiku.com.cn/uploads/allimg/20200328/20200328173915-55747.png)
的结果为 ( )
最新试题
热门考点