(文)若方程
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139015_ST/0.png)
=1表示椭圆,则k的取值范围是
.
考点分析:
相关试题推荐
一个圆锥的侧面展开是半径为R的圆的一半,则它的体积为
.
查看答案
已知P是椭圆
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139012_ST/0.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139012_ST/1.png)
=1上的一点,F
1、F
2是该椭圆的两个焦点,若△PF
1F
2的内切圆半径为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139012_ST/2.png)
,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139012_ST/3.png)
的值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139012_ST/4.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139012_ST/5.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139012_ST/6.png)
D.0
查看答案
如图,圆F:(x-1)
2+y
2=1和抛物线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139011_ST/0.png)
,过F的直线与抛物线和圆依次交于A、B、C、D四点,求|AB|•|CD|的值是( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139011_ST/images1.png)
A.1
B.2
C.3
D.无法确定
查看答案
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139010_ST/images0.png)
如图,某几何体的正视图与侧视图都是边长为1的正方形,且体积为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139010_ST/0.png)
.则该几何体的俯视图可以是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139010_ST/images2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139010_ST/images3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231824145013961/SYS201311012318241450139010_ST/images4.png)
D.
查看答案