![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993012_ST/0.png)
=
.
考点分析:
相关试题推荐
已知函数y=f(x)是定义在实数集R上的奇函数,且当x>0,f(x)+xf′(x)>0(其中f′(x)是f(x)的导函数),a={
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993011_ST/0.png)
4}f
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993011_ST/1.png)
4,b=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993011_ST/2.png)
f(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993011_ST/3.png)
)设c=(lg
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993011_ST/4.png)
),则a,b,c的大小关系是( )
A.c>a>b
B.c>b>a
C.a>b>c
D.a>c>b
查看答案
函数f(x)=sin(ωx+φ)(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993010_ST/0.png)
)的最小正周期是π,若其图象向右平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993010_ST/1.png)
个单位后得到的函数为奇函数,则函数f(x)的图象( )
A.关于点
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993010_ST/2.png)
对称
B.关于点
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993010_ST/3.png)
对称
C.关于直线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993010_ST/4.png)
对称
D.关于直线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993010_ST/5.png)
对称
查看答案
若函数f(x)=ka
x-a
-x,(a>0,a≠1)在(-∞,+∞)上既是奇函数,又是增函数,则g(x)=log
a(x+k)的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993009_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993009_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993009_ST/images2.png)
D.
查看答案
如图,已知正六边形P
1P
2P
3P
4P
5P
6,下列向量的数量积中最大的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993008_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993008_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993008_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100636935299318/SYS201311031006369352993008_ST/2.png)
D.
查看答案
若两个函数的图象经过若干次平移后能够重合,则称这两个函数为“同形”函数,给出下列四个函数:f
1(x)=2log
2x,f
2(x)=log
2(x+2),f
3=log
22x,f
4=log
2(2x)则“同形”函数是( )
A.f
1(x)与f
2(x)
B.f
2(x)与f
3(x)
C.f
2(x)与f
4(x)
D.f
1(x)与f
4(x)
查看答案