题目
题型:解答题难度:简单来源:不详
已知
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-21047.gif)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-88998.gif)
(2)判断并用定义证明函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-88998.gif)
(3)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-88998.gif)
答案
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-13058.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-88998.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-13058.gif)
(3)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012144-89866.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012144-59732.gif)
解析
解:(1)由
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012144-34851.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-13058.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-88998.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012144-34188.gif)
设
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012144-57357.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012145-42192.gif)
即
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012145-85845.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-88998.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012143-13058.gif)
(3)令
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012145-40983.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012145-99049.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012145-68421.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012144-89866.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012144-59732.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012141-85832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012141-14185.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012141-51384.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012141-39610.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012141-86107.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012142-85278.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012142-77281.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012142-85278.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012142-36364.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012141-86107.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012141-86107.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012138-23682.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012138-97582.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012138-78027.gif)
A
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012139-54433.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012139-91718.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012139-81825.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012139-13255.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012135-34139.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012135-30021.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012135-46658.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012136-53647.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012136-30481.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012136-17934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012136-97769.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012131-84140.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012132-87564.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012132-24767.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012132-86602.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012132-77609.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012132-80276.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012132-87564.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012133-93475.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012133-64893.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012128-96890.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012128-52069.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012128-52069.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012128-64161.gif)
A
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012128-26470.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012128-91401.gif)
C.
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012129-88087.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818012129-67486.gif)
最新试题
- 1如图所示,光滑水平面右端B处连接一个竖直的半径为R=0.4m的光滑半圆形轨道,B点为水平面与轨道的切点,用水平恒力F将质
- 2下列各句中,加点的熟语运用正确的一项是A.面对来自美国华尔街的金融危机,我们一定要以冷静的心态机智应付,等闲视之,化危机
- 3—This camera is really cheap. —The____,the better. I"m short
- 4阅读理解。 MIT researchers and their colleagues are working t
- 5有关北京时间的叙述正确的是①北京所在经线的地方时 ②120°E经线的地方时③北京所在的东8区的地方时
- 6如图所示,水平面上有一固定着轻质定滑轮O的木块A,它的上表面与水平面平行,它的右侧是一个倾角θ=37°的斜面.放置在A上
- 7能达到“人在画中游”意境的游览方式是( )A.乘坐火车B.乘坐飞机C.登高远眺D.乘坐游船
- 8一粒小麦属于( )A.种子B.果实C.子房D.胚珠
- 9读世界洋流分布图,分析回答下列问题。(1)图中D处附近海域为世界著名的__________渔场,此处洋流按性质分类属于_
- 10给下面形近字注音并组词。①呜( )_______ 鸣( )_______②槽( )_______
热门考点
- 1使非洲成为世界上经济发展水平最低的一个洲的根本原因是A.自然灾害比较频繁B.民族内部不团结C.人口增长速度快D.长期受殖
- 2【题文】斯塔夫里阿诺斯在《全球通史》中写道:周以后的秦朝,尽管存在时间短暂,却用一个组织得很严密的帝国结构取代了周的分封
- 3 解释下列加粗多义词的意思。1、如鸣珮环( ) 四面
- 4若一个正三棱柱的正视图如图所示,其顶点都在一个球面上,则该球的表面积为( )A.B.C.D.
- 5在“噬菌体侵染细菌”的实验中,若放射性同位素主要分布在离心管的沉淀物中,则获得用于侵染细菌的噬菌体的方法是 [
- 6明朝后期,出现“末富居多,本富居少”,江南农村人口“昔日逐末之人尚少,今去农而改商者,三倍于前”的社会现象,这说明 A
- 7关于匀速直线运动和变速直线运动,下列说法中正确的是: A.沿直线运动
- 8补全对话。A: 1_____?B: I"m watching TV.A: TV show is boring. 2 __
- 9如图所示,是一个使电子束偏转的装置.电子枪从M板的左边缘连续发射一定速度的电子.电源电动势为E,内阻忽略不计.M、N为两
- 10用下列器材,测定小灯泡的额定功率。A.待测小灯泡:额定电压6V,额定功率约为5W;B.电流表:量程l.0A,内阻约为0.