满分5 >
高中数学试题 >
若函数f(x)是偶函数,且在(0,+∞)内是增函数,又f(-3)=0.则x•f(...
若函数f(x)是偶函数,且在(0,+∞)内是增函数,又f(-3)=0.则x•f(x)<0的解集是 .
考点分析:
相关试题推荐
若幂函数f(x)=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101200928500689/SYS201311031012009285006014_ST/0.png)
(m∈Z)在(O,+∞)上是单调递减的偶函数,则m=
.
查看答案
己知A={x|ax+1=0,a∈R},B={xlx
2-x-2=0},且A∪B=B,则实数a的值组成的集合为
.
查看答案
设函数f(x)=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101200928500689/SYS201311031012009285006011_ST/0.png)
-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101200928500689/SYS201311031012009285006011_ST/1.png)
,[x]表示不超过x的最大整数,则函数y=[f(x)]+[f(-x)]的值域为( )
A.{0}
B.{-2,0}
C.{-1,0,1}
D.{-1,0}
查看答案
函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101200928500689/SYS201311031012009285006010_ST/0.png)
的图象大致为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101200928500689/SYS201311031012009285006010_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101200928500689/SYS201311031012009285006010_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101200928500689/SYS201311031012009285006010_ST/images3.png)
D.
查看答案