10.在R上定义运算:.若不等式对任意实数x成立.则的取值范围为 . 【
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题目列表(包括答案和解析)
在R上定义运算:
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131103101238933487915/SYS201311031012389334879004_ST/0.png)
,若不等式
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131103101238933487915/SYS201311031012389334879004_ST/1.png)
对任意实数x成立,则实数a的最大值为( )
A.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131103101238933487915/SYS201311031012389334879004_ST/2.png)
B.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131103101238933487915/SYS201311031012389334879004_ST/3.png)
C.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131103101238933487915/SYS201311031012389334879004_ST/4.png)
D.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131103101238933487915/SYS201311031012389334879004_ST/5.png)
查看答案和解析>>
在R上定义运算:
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131101223043323602580/SYS201311012230433236025005_ST/0.png)
,若不等式
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131101223043323602580/SYS201311012230433236025005_ST/1.png)
对任意实数x成立,则实数a的最大值为( )
A.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131101223043323602580/SYS201311012230433236025005_ST/2.png)
B.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131101223043323602580/SYS201311012230433236025005_ST/3.png)
C.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131101223043323602580/SYS201311012230433236025005_ST/4.png)
D.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131101223043323602580/SYS201311012230433236025005_ST/5.png)
查看答案和解析>>
在R上定义运算:
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131025123433531563517/SYS201310251234335315635004_ST/0.png)
,若不等式
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131025123433531563517/SYS201310251234335315635004_ST/1.png)
对任意实数x成立,则实数a的最大值为( )
A.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131025123433531563517/SYS201310251234335315635004_ST/2.png)
B.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131025123433531563517/SYS201310251234335315635004_ST/3.png)
C.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131025123433531563517/SYS201310251234335315635004_ST/4.png)
D.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131025123433531563517/SYS201310251234335315635004_ST/5.png)
查看答案和解析>>
在R上定义运算:
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131024183651139168520/SYS201310241836511391685002_ST/0.png)
,若不等式
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131024183651139168520/SYS201310241836511391685002_ST/1.png)
对任意实数x成立,则实数a的最大值为( )
A.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131024183651139168520/SYS201310241836511391685002_ST/2.png)
B.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131024183651139168520/SYS201310241836511391685002_ST/3.png)
C.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131024183651139168520/SYS201310241836511391685002_ST/4.png)
D.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131024183651139168520/SYS201310241836511391685002_ST/5.png)
查看答案和解析>>
在R上定义运算:
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131023212217257873106/SYS201310232122172578731010_ST/0.png)
,若不等式
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131023212217257873106/SYS201310232122172578731010_ST/1.png)
对任意实数x成立,则实数a的最大值为( )
A.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131023212217257873106/SYS201310232122172578731010_ST/2.png)
B.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131023212217257873106/SYS201310232122172578731010_ST/3.png)
C.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131023212217257873106/SYS201310232122172578731010_ST/4.png)
D.
![](http://thumb.zyjl.cn/pic6/res/gzsx/web/STSource/20131023212217257873106/SYS201310232122172578731010_ST/5.png)
查看答案和解析>>