题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110651-34396.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-60331.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-29023.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-99975.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-43492.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-96970.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110653-39373.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110653-68760.gif)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110653-33166.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110653-25216.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110653-14634.gif)
(3)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-70862.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-34916.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110653-14634.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-52379.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-29023.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-99975.gif)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-55144.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110655-37953.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-34916.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110655-97153.gif)
而
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110655-82098.gif)
得
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110655-71704.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110651-34396.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-60331.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110655-78867.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110653-14634.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-52379.gif)
(3)∵
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-34916.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110651-34396.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110652-60331.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110656-92131.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110656-51917.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110656-41905.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110656-29918.gif)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110657-92176.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110657-19834.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110657-70719.gif)
∵
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110657-79324.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110657-88510.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110657-70719.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110658-38091.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110658-84611.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110658-22906.gif)
∵
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110658-88422.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110658-13635.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110659-22882.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110659-31915.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110659-10606.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110659-52256.gif)
得
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110700-90675.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110700-33773.gif)
即
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110700-67472.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110700-95310.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110700-94635.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110658-13635.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110654-70862.gif)
核心考点
试题【已知是定义在上的单调递增函数,对于任意的满足,且,满足.(1)求;(2)若,解不等式;(3)求证:.】;主要考察你对一元二次不等式及其解法等知识点的理解。[详细]
举一反三
A.(0, 1) | B.(-1, 0) | C.(1, 2) | D.(-∞, -1) |
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110642-70875.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110629-84344.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
若
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110618-87586.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110619-86686.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110619-92107.gif)
中正确的是( )
A.(1)(2) | B.(2)(3) | C.(1)(3) | D.(3)(4) |
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016110613-58375.gif)
最新试题
- 1富尔格姆在《信条》一文中说:“这仍然是个忠告,不论你们年纪多大——当你们出门,到世界上去走走,最好还是手拉手,紧挨一起。
- 2某企业2013年年初自有资本500万元,向银行贷款200万元,当年贷款的年利率为6%,企业的毛利润率(毛利润/总资产)为
- 3目前,我国已经建立了全面的监督体系。下列选项中,属于行政系统体系外部监督的有①法制部门的监督②政协的监督③人大的监督④司
- 4国家财政收入和支出是推动我国国民经济持续、快速、健康发展的重要力量。我国的财政收入连年大幅度增长,有效地支持了国家重点建
- 5同一种物质按照不同的分类标准可以分为很多类别,按照物质的成分对下列10种物质进行分类:(均填序号)①水 ②空气 ③铁 ④
- 6下列句子划线成语使用正确的一项是( )(3分)A.土地是财富之母,从法律的角度抑制一些地方政府“以地生财”的做法已
- 7在第21届冬奥会比赛中王濛夺得短道速滑女子冠军,她成为冬奥会上的新晋三冠王.(1)王濛在冰场上曲线滑行时(如图),冰场上
- 8若函数,,则=_____________。
- 9下列说法:①若a为有理数,则-a为负有理数;②若a≠0,b≠0,则a+b≠0;③若a+b=0,则a3+b3=0;④若a2
- 10下列实验操作中,正确的是A.用铂丝蘸取少量KCl溶液置于火焰上灼烧,直接观察火焰颜色,检验K+的存在B.在石油蒸馏装置中
热门考点
- 1 Max is _______honest boy. He has _______ useful book.A.an;
- 2钙对人体的作用是重要的,人体中最大的钙库是A.小肠B.骨C.皮肤D.肌肉
- 3根据句意及汉语或首字母提示,填写恰当的单词。1. It"s not right to _________ (浪费) ti
- 4已知函数y=b+ax2+2x,(a,b是常数a>0且a≠1)在区间[-32,0]上有ymax=3,ymin=52(1)求
- 5下图中“”和“”分别表示不同质子数的原子在化学变化前后的微观模拟示意图. 请根据图示回答问题:(1)该反应的基本反应类型
- 6英国的工业革命首先从 ( )A.机器制造业B.造纸业C.棉纺织业D.交通业
- 7(8分)某学生利用以下装置探究氯气与氨气之间的反应。其中A、F分别为氨气和氯气的发生装置,C为纯净干燥的氯气与氨气反应的
- 8下列变形正确的是( )A.若12y=0,则y=2B.若3=x-2,则x=-2-3C.由13y=6,则y=2D.若2πk
- 9Our English teacher is very ______ to us. We all love her.A.
- 10在△ABC中,∠A-∠B=35°,∠C=55°,则∠B等于[ ]A.50°B.55°C.45°D.40°