满分5 >
高中数学试题 >
过双曲线=1的一个焦点F作一条渐近线的垂线,若垂足恰在线段OF(O为原点)的垂直...
过双曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297015_ST/0.png)
=1的一个焦点F作一条渐近线的垂线,若垂足恰在线段OF(O为原点)的垂直平分线上,则双曲线的离心率为
.
考点分析:
相关试题推荐
设奇函数f(x)在(0,+∞)上为增函数,且f(1)=0,则不等式
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297014_ST/0.png)
的解集是
.
查看答案
数列{a
n}满足
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297013_ST/0.png)
,若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297013_ST/1.png)
,则a
2004的值为
.
查看答案
已知实数x,y满足
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297012_ST/0.png)
,则x
2+y
2的最大值为
.
查看答案
已知关于x的方程x
2+(1+a)x+1+a+b=0(a,b∈R)的两根分别为x
1、x
2,且0<x
1<1<x
2,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297011_ST/0.png)
的取值范围是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297011_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297011_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297011_ST/3.png)
D.
查看答案
直线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297010_ST/0.png)
与圆x
2+y
2=1相交于A、B两点(其中a,b是实数),且△AOB是直角三角形(O是坐标原点),则点P(a,b)与点(0,1)之间距离的最小值为( )
A.0
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297010_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101224615737329744/SYS201311012246157373297010_ST/2.png)
D.
查看答案