题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-49409.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-23739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-13918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182716-19587.png)
A.R>Q>P | B.R>P>Q | C.P>R>Q | D.Q>P>R |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182717-43721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182717-47763.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182717-32062.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182717-26168.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182718-14203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182718-80921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182718-70938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182718-35366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182718-82902.png)
因为当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182719-43890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182719-52099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182719-42085.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182719-13251.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182719-39074.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182720-54202.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182720-81609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182720-80654.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182720-44918.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182720-96317.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182721-63314.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182721-53938.png)
综上可得,
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182721-88619.png)
核心考点
试题【定义在(-1,1)上的函数,f(x)满足:f(x)-f(y)=f();当x∈(-1,0)时,有f(x)>0.若p=f()+f(),Q=f(),R=f(0)】;主要考察你对指数函数图象及性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182710-59595.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182710-61996.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-41394.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-43704.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-18952.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182711-84100.jpg)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182702-57865.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182702-17736.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-21599.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-62945.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-69169.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182703-33865.jpg)
A.k<l | B.![]() | C.k >-1 | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182659-65334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182659-59482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182659-11613.png)
A.(2, 3 ) | B.(3, 4 ) | C.(0, 1 ) | D.(1, 2 ) |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182650-78275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182650-39752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-18406.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-13024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-28505.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-53063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182651-79259.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-48935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-66427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-82296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-50213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-94226.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-71353.png)
(ⅰ)求当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-96121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182652-48935.png)
(ⅱ)求方程
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-37246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182653-96739.png)
(本题满分14分)已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182637-20358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182637-76384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182637-77245.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182637-86460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182638-15543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182637-86460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182638-52601.png)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182637-86460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182638-15543.png)
(2)若方程
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182638-60547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182638-61833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182638-22912.png)
(3)设
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182639-15680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182639-71917.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182639-73865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819182638-22912.png)
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