题目
题型:不详难度:来源:
函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061418-65166.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-89803.gif)
(1)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-29902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-36622.gif)
(2)若对
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-29902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-91209.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-23102.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-36622.gif)
(3)设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-13301.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-44292.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-79753.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-22399.gif)
使得
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-75035.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-32712.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-20813.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-85543.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-18158.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061422-64426.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-18158.gif)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-85543.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061422-58758.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061422-33401.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061422-14088.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-18158.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061422-91710.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061423-94339.gif)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061422-64426.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061423-29892.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-18158.gif)
综上,所求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-36622.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061423-99600.gif)
(2)由题意,
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061423-71103.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-29902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061423-96049.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-97053.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-97053.gif)
(3)由(1)知,当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-79753.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-29902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-18158.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-29902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-25478.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-29902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-25478.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-45643.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-66537.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061425-21990.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061425-77307.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-13301.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-13301.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061425-31703.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061425-11794.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-25478.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061425-11794.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-25478.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061426-97209.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061426-58326.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061420-13301.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061426-93003.gif)
①若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061426-20312.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061426-61627.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061424-25478.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061426-61627.gif)
②若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061427-37296.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061427-90065.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061419-29902.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061425-11794.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061427-74027.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061427-12331.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061428-22778.gif)
解得
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061428-84840.gif)
综上,所求实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061421-32712.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061428-87875.gif)
解析
核心考点
试题【(本题满分15分)函数,其中。(1)若函数在其定义域内是单调函数,求的取值范围;(2)若对定义域内的任意,都有,求的值;(3)设,。当时,若存在,使得,求实数的】;主要考察你对常见函数的导数等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061414-56469.gif)
(1)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061414-77096.gif)
(2)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061414-93495.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061406-97759.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061407-92093.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061407-44440.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061407-69049.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061407-15738.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-36053.gif)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-37509.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-52403.gif)
(2)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-60304.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-24368.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-75833.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-35380.gif)
(3)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061352-96928.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061345-48195.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061346-78838.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061341-97452.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061342-54374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061342-49594.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018061342-69483.gif)
A.4 | B.5 | C.-2 | D.-3 |
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