题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031847-75564.png)
(1)判断
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
(2)讨论
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-36036.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-75724.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-58602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-56434.png)
解析
试题分析:(1)要判断
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-25194.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-74900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-32568.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-52343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031850-65623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-25194.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-75724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-36036.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031850-88966.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-25194.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031850-77038.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-58602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-56434.png)
(1)函数定义域为R,关于原点对称,∵
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-74900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-52343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031850-92429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031850-64585.png)
从而
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031851-51405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031850-65623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031851-65158.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
故当
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031851-13295.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031851-46837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-25194.png)
(3)由(2)知
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-66296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031851-36370.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031852-91276.png)
∴要使
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-75724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031851-36370.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031852-33263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031848-58602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031849-56434.png)
核心考点
举一反三
A.0 | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031842-98636.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031839-72204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031839-96478.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031839-11614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031839-93910.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031836-64848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031836-96464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031836-36461.png)
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031836-20452.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031836-36208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031837-49775.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031837-51015.png)
其中正确的结论序号为_________
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031830-92393.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031830-86464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031831-56964.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031831-15503.png)
如果对于
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031831-82991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031831-30430.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031831-91362.png)
(2)解不等式
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818031832-80935.png)
最新试题
- 1—You have a nice watch. —Thank you. I _____ it since I g
- 2两极地区特殊的自然环境,为科学家进行科学研究提供了最为广阔的天然实验室。目前,我国在两极地区已经建成了四个科学考察站。分
- 3如图所示,一束光线与水平面成30°角从空气斜射到水面时,发生反射和折射,请你在图中画出它的反射光线和折射光线的大致方向。
- 4已知:a<0,化简4-(a+1a)2-4+(a-1a)2=______.
- 5植入式广告是一种把产品及其服务具有代表性的视听符号融入影视或舞台艺术作品中,给观众留下一定印象,以达到营销目的的广告形态
- 6x2-xy+______=(______)2.
- 7综合学习与探究。(10分) 在我国古代历史长河中,曾经涌现出无数风流人物。虽然这些风流人物的生命早已消逝,但他们感人的故
- 8如图,△ABC绕点O旋转,使点A旋转到点D处,画出旋转后的三角形,并写出简要作法。
- 9为什么用湿手触摸电器设备容易发生触电事故? _________ .
- 10阅读理解。
热门考点
- 1我国某地区雪山冰川众多,是不少大江、大河的源头,区内主要的农作物有青稞、豌豆、小麦等,牦牛是本区代表性的畜种.该地区是(
- 2下列叙述中正确的是 [ ]A.含金属元素的离子,一定都是阳离子 B.在氧化还原反应中,非金属单质一定是氧化剂 C
- 3New research shows sheep are clever People often make jokes
- 4关于 ①植物细胞 ②动物细胞 ③酵母菌 ④乳酸菌 ⑤病毒的叙述错误的是( )A.②没有细胞壁,①③④都有细胞壁B.①②
- 5“分配时民生之源”,我国的分配制度是[ ]A.按劳分配为主体,多种分配方式并存 B.先
- 6如图,小明用手盖住的点的坐标可能为[ ]A.(2,3)B.(2,-3)C.(-2,3)D.(-2,-3)
- 7下列化工生产原理错误的是①可以用电解熔融的氯化钠的方法来制取金属钠②可以用钠加入氯化镁饱和溶液中制取镁③用电冶铝时,原料
- 8在用重锤下落来验证机械能守恒时,某同学按照正确的操作选得纸带如图所示.其中O是起始点,A、B、C、D、E是打点计时器连续
- 9在生态系统中,一些有害物质如铅、汞等会通过食物链不断积累。下列各项中,能够表示某食物链中生物体内有害物质数量关系的图示是
- 10关于声现象下列说法中正确的是( )A.声音只能在空气中传播B.声音在真空中传播最快C.声音不能在固体中传播D.市区禁止