题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193804-17618.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193804-10698.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193804-64798.png)
解析
试题分析:因为
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193805-96451.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193805-57387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193805-53761.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193805-21596.png)
点评:本小题主要是借助分数指数幂的运算性质转化为同底的指数,然后再借助指数函数的单调性进行比较.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193802-91848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193802-47822.png)
已知
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193750-21441.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193751-53642.png)
(Ⅰ)当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193751-51222.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193751-94282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193751-27622.png)
(Ⅱ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193751-15526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193751-90776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193743-28473.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193744-92350.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193744-23370.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193744-61849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193745-34599.png)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193745-93842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193743-28473.png)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193745-34923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193745-57169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193741-41408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-79365.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-89973.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-58183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-98705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-61458.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-34869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-58183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193742-33762.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193739-14456.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193739-67661.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193739-75024.png)
(2)若对任意的
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-18260.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-17134.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-59044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-93393.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-13664.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-67385.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-46911.png)
(3)是否存在
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-88638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193739-75024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-99024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-21905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-74839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-99024.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-76762.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819193740-20523.png)
最新试题
- 1中共大政方针的制定主要是通过一系列会议来完成,方针政策制定正确与否会对革命和建设带来很大影响。中共“一大”确定的党成立后
- 2中国入关(WTO)之路艰难曲折,用龙永图的话来说是“黑头发都谈成白头发了”。以下关于世界贸易组织的表述不正确的是(
- 3【题文】从这首词的结尾两句“天地一孤啸,匹马又西风”中,你读出了一个怎样的词人形象?请结合这首词的内容,对这一形象进行评
- 4对我国的位置评价,不正确的是A.南北跨纬度广,气候差异大,为我国发展多种农业经济提供了有利条件B.辽阔的海域,便于我国海
- 5分解一个确定大小和方向的力,在下列给出的四种附加条件中,能得到唯一确定解的情况,正确的说法是( )①已知两个分力的方向
- 6甲物体质量为100g,乙物体质量为20g.比较这两个物体的质量关系时,下列表达最确切的是( )A.甲的质量多,乙的质量
- 7一物体由斜面底端上滑到顶端恰好速度为零,历时2s,那么它从斜面中点到顶端所用时间为( )A.(2-1)sB.(2+1)
- 8实验室可用高锰酸钾、过氧化氢制取氧气,下列说法错误的是 [ ]A.两个反应都是分解反应 B.二氧化锰在两个反
- 9Listen and choose the right picture. (听句子,选择意思相符的图片。)
- 10关于竖直上抛运动的上升过程和下落过程(起点和终点相同),下列说法正确的是:( )A.物体上升过程所需的时间与下降过
热门考点
- 1If you have no special plans for your holidays, why not spen
- 2水的比热较大,人们往往利用它的这一特性为生活、生产服务,下列事例中与它的这一特性无关的是( )A.让流动的热水流过散热
- 3甜蜜素[C6H12NSNa]是一种甜味添加剂。下列有关说法正确的是[ ]A.它是混合物B.它是无机化合物C.它由
- 4某人将2008看成了一个填数游戏式:2□□8,于是他在每个框中各填写了一个两位数与,结果所得到的六位数恰是一个完全立方数
- 5读某一国家轮廓图,并判断下列各题:小题1:图中①处是一个大型能源基地,它是 A.油田B.煤矿C.核电站D.水电站小题2:
- 6某化学兴趣小组测定某FeCl3样品(含少量FeCl2杂质)中铁元素的质量分数,实验室按以下步骤进行:①称量ag样品,置于
- 7The village is ________ on all sides by green mountains, whi
- 8如图是四位同学对某一物质的化学式意义的描述,该物质是( )A.PB.NO2C.NH3D.NaOH
- 9曹汝霖在回忆录中写到:“一天,吴总监来电——天安门外有学生千余人,手执白旗,标语为‘和会失败’,攻击曹总长诸位,请诸位暂
- 10下列物质中,含有氧分子的是 A.SO2B.O2C.H2O2D.KMnO4