题目
题型:解答题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-40749.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-77578.png)
(2)判断
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-77578.png)
(3)方程
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-84727.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-82802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-92414.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-93641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-82802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-26226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-93641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-70551.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-17485.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161152-42543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-77578.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161152-15490.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161152-14779.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161152-24578.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-77578.png)
数.…………6分
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161153-10138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161153-81353.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161153-99055.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161153-99775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161153-95676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161154-79943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-84727.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-82802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-82802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161154-77599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161154-14760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161154-44775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-82802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-26226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161154-85104.png)
区间长度为
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-92414.png)
综上方程
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-84727.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-82802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161150-82802.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-26226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161154-85104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161154-85104.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161151-92414.png)
间…….…………14分
解析
核心考点
试题【 (本题满分14分)已知函数.(1)求函数的定义域;(2)判断的奇偶性;(3)方程是否有根?如果有根,请求出一个长度为的区间,使;如果没有,请说明理由?(注:区】;主要考察你对对数函数的定义等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161147-95589.png)
A.-1 | B.0 | C.1 | D.2 |
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161143-31026.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161143-93218.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161143-81517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161143-66278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161140-17356.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161135-93281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161136-37945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161136-91481.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161136-79017.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161132-87437.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161132-55354.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190820/20190820161132-25328.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
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