不等式
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486012_ST/0.png)
的解集是
.
考点分析:
相关试题推荐
棱长都为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486011_ST/0.png)
的四面体的四个顶点在同一球面上,则此球的表面积为( )
A.3π
B.4π
C.3
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486011_ST/1.png)
D.6π
查看答案
已知长方形的四个项点A(0,0),B(2,0),C(2,1)和D(0,1),一质点从AB的中点P
沿与AB夹角为θ的方向射到BC上的点P
1后,依次反射到CD.DA和AB上的点P
2.P
3和P
4(入射角等于反射角),设P
4坐标为(x
4,0),若1<x
4<2,则tanθ的取值范围是( )
A.(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486010_ST/0.png)
,1)
B.(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486010_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486010_ST/2.png)
)
C.(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486010_ST/3.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486010_ST/4.png)
)
D.(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486010_ST/5.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486010_ST/6.png)
)
查看答案
函数f(x)=sinx,x∈
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486009_ST/0.png)
的反函数f
-1(x)=( )
A.-arcsinx,x∈[-1,1]
B.-π-arcsinx,x∈[-1,1]
C.-π+arcsinx,x∈[-1,1]
D.π-arcsinx,x∈[-1,1]
查看答案
已知圆锥的底面半径为R,高为3R,在它的所有内接圆柱中,全面积的最大值是( )
A.2πR
2B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486008_ST/0.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486008_ST/1.png)
D.
查看答案
已知圆C:(x-a)
2+(y-2)
2=4及直线l:x-y+3=0,当直线l被C截得的弦长为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486007_ST/0.png)
时,则a等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486007_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486007_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124216152548687/SYS201310251242161525486007_ST/3.png)
D.
查看答案