![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744012_ST/0.png)
(x
2-4)dx=
.
考点分析:
相关试题推荐
定义在R上的偶函数y=f(x),满足f(x+1)=-f(x),且在[-3,-2]上是减函数,若α,β是锐角三角形的两个内角,则( )
A.f(sinα)>f(sinβ)
B.f(cosα)>f(cosβ)
C.f(sinα)<f(cosβ)
D.f(sinα)>f(cosβ)
查看答案
若等边△ABC的边长为2,平面内一点M满足
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744010_ST/0.png)
,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744010_ST/1.png)
=( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744010_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744010_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744010_ST/4.png)
D.
查看答案
设奇函数f(x)在(0,+∞)上是增函数,且f(1)=0,则不等式x[f(x)-f(-x)]<0的解集为( )
A.{x|-1<x<0,或>1}
B.{x|x<-1,或0<x<1}
C.{x|x<-1,或x>1}
D.{x|-1<x<0,或0<x<1}
查看答案
已知f(x)=x
3+ax
2+(a+6)x+1既有极大值又有极小值,则a的取值范围为( )
A.a<-1或a>2
B.-3<a<6
C.-1<a<2
D.a<-3或a>6
查看答案
下列命题中,真命题是( )
A.若sinA=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744007_ST/0.png)
,则A=30°
B.若m>0,则x
2+x+m=0有实根
C.存在实数a,b∈(0,+∞),当a+b=1时,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101025717574440/SYS201311031010257175744007_ST/1.png)
D.x+y≠2012是x≠1006或y≠1006的充分不必要条件
查看答案