题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-85507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-36158.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-67402.png)
(2)求证:当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-51925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-74058.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-99737.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-40246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-28870.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-24628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-50904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-40246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-42872.png)
解析
试题分析:本题考查函数的单调区间及极值的求法和不等式的证明,具体涉及到导数的性质、函数增减区间的判断、极值的计算和不等式性质的应用.
(1)由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-36158.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-13174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-61264.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-35154.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-40849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025240-42922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025240-48921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025240-58162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025240-58205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025241-92177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-99737.png)
试题解析:(1)由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-36158.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-13174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025241-71043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025241-42842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-40246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-24628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-28870.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-50904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-40246.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025241-73381.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-67402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-42872.png)
(2)设函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025239-40849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025240-42922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-67402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025241-65958.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-51925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025242-62770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025242-35238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025237-67402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025242-56236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025242-91253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025242-35238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025240-58205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025243-87241.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025241-92177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025243-53014.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025243-49566.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025238-99737.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025228-75532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025228-78540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-75872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-73897.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025228-78540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-10496.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025229-79405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-56691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-46536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-76464.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025215-95270.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-46613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-37368.png)
(3)讨论关于
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-53005.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025216-95170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-45731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-67079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025210-30306.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025201-60191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025201-18476.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025201-96191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025202-29492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025202-90386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018025202-80166.png)
A.![]() | B.![]() | C.![]() | D.![]() |
A.(-3,0)∪(3,+∞) | B.(-3,0)∪(0,3) |
C.(-∞,-3)∪(3,+∞) | D.(-∞,-3)∪(0,3) |
最新试题
- 1设原命题:若a+b≥2,则a,b 中至少有一个不小于1。则原命题与其逆命题的真假情况是( )A.原命题真,逆命题假
- 2---What do you think of this schoolbag? --- Oh, it looks ___
- 3有关溶液的叙述正确的是 [ ]A、溶液一定是无色透明的B、溶液一定能导电C、均一、稳定的液体一定是溶液D、溶液不
- 4若在上是增函数,则的关系式为是
- 5鉴别下列各组物质,所用试剂不正确的是 待鉴别的物质鉴别试剂A稀盐酸和氢氧化钠溶液无色酚酞试液B海水和蒸馏水硝酸银溶液C铜
- 6短文改错(共10小题; 每小题1, 满分10分) 文中有10处语言错误, 每句中最多有两处。错误涉及一个单词的增加、删除
- 7液体内部压强的特点可以概括为:(1)液体内部各个方向都有______.(2)压强随深度的增加而______.(3)在同一
- 8阅读《在夏日原野上的追赶》,完成问题。 ①从上学开始,老师就不止一次地在黑板上写下“最有意义的事”这样的作文题目。什么
- 9Many children are ________ in the countryside when their par
- 10_____ have you been swimming? For five years.A.How many time
热门考点
- 1李超与周强进行同品种西红柿盆种比赛,光照和浇水情况基本相同,李超的西红柿结的大而多,周强的西红柿结的小而少.请你分析后者
- 2已知直线的参数方程为(为参数),以坐标原点为极点,轴的正半轴为极轴建立极坐标系,曲线的极坐标方程为,则直线与曲线的公共点
- 3在平面直角坐标系中,将点A(1,2)的横坐标乘以-1,纵坐标不变,得到点A′,则点A与点A′的关系是[ ]A.
- 4若直线与两坐标轴围成的三角形面积为9,求的值。(6分)
- 5已知: (1)Zn(s)+1/2O2(g)===ZnO(s) ΔH=-348.3 kJ/mol (2)2Ag(s)+1/
- 6The project my students are working is quite challeng
- 7【题文】(30分)马克思说:“各种经济时代的区别,不在于生产什么,而在于怎样生产,用什么劳动资料生产。”阅读材料,结合所
- 8关节内滑液存在于______中,对关节起润滑作用.
- 9一个不透明的纸盒中装有大小相同的黑、白两种颜色的围棋,其中白色棋子3个(分别用白A、白B、白C表示),若从中任意摸出一个
- 102010年7月11日是第21个世界人口日。读图回答1—3题。1、若图中外圆代表中国某一省区,A和B分别为该省区的某两部分