满分5 >
高中数学试题 >
椭圆的左右焦点分别为F1,F2,弦AB过F1,若△ABF2的内切圆周长为π,A,...
椭圆
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083009_ST/0.png)
的左右焦点分别为F
1,F
2,弦AB过F
1,若△ABF
2的内切圆周长为π,A,B两点的坐标分别为(x
1,y
1),(x
2,y
2),则|y
1-y
2|值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083009_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083009_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083009_ST/3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083009_ST/4.png)
考点分析:
相关试题推荐
设f(x)是(-∞,+∞)上的奇函数,f(x+2)=-f(x),当0≤x≤1时,f(x)=x,则f(7.5)等于( )
A.0.5
B.-0.5
C.1.5
D.-1.5
查看答案
若曲线y=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083007_ST/0.png)
在点(a,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083007_ST/1.png)
)处的切线与两个坐标围成的三角形的面积为18,则a=( )
A.64
B.32
C.16
D.8
查看答案
某班选派6人参加两项公益活动,每项活动最多安排4人,则不同的安排方法有( )
A.50种
B.70种
C.35种
D.55种
查看答案
如图,平面α⊥平面β,A∈α,B∈β,AB与两平面α、β所成的角分别为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083005_ST/0.png)
和
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083005_ST/1.png)
.过A、B分别作两平面交线的垂线,垂足为A′、B′,则AB:A′B′=( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083005_ST/images2.png)
A.2:1
B.3:1
C.3:2
D.4:3
查看答案
已知角α的终边过点
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083004_ST/0.png)
的值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083004_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083004_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231034496508355/SYS201311012310344965083004_ST/3.png)
D.
查看答案