满分5 >
高中数学试题 >
设偶函数f(x)满足f(x)=2x-4(x≥0),则{x|f(x-2)>0}=(...
设偶函数f(x)满足f(x)=2x-4(x≥0),则{x|f(x-2)>0}=( )
A.{x|x<-2或x>4}
B.{x|x<0或x>4}
C.{x|x<0或x>6}
D.{x|x<-2或x>2}
考点分析:
相关试题推荐
执行程序框图,如果输入的N是6,那么输出的p是( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625003_ST/images0.png)
A.120
B.720
C.1440
D.5040
查看答案
曲线y=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625002_ST/0.png)
在点(-1,-1)处的切线方程为( )
A.y=2x+1
B.y=2x-1
C.y=-2x-3
D.y=-2x-2
查看答案
已知复数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625001_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625001_ST/1.png)
是z的共轭复数,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625001_ST/2.png)
=( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625001_ST/3.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625001_ST/4.png)
C.1
D.2
查看答案
已知集合A={x∈R||x|≤2}},
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105462565/SYS201311031010171054625000_ST/0.png)
,则A∩B=( )
A.(0,2)
B.[0,2]
C.{0,2]
D.{0,1,2}
查看答案
已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105292153/SYS201311031010171052921021_ST/0.png)
为奇函数,f(1)<f(3),且不等式
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105292153/SYS201311031010171052921021_ST/1.png)
的解集是[-2,-1]∪[2,4]
(1)求a,b,c.
(2)是否存在实数m使不等式
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101017105292153/SYS201311031010171052921021_ST/2.png)
对一切θ∈R成立?若存在,求出m的取值范围;若不存在,请说明理由.
查看答案