满分5 >
高中数学试题 >
已知椭圆的焦点为F1、F2,在长轴A1A2上任取一点M,过M作垂直于A1A2的直...
已知椭圆
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742006_ST/0.png)
的焦点为F
1、F
2,在长轴A
1A
2上任取一点M,过M作垂直于A
1A
2的直线交椭圆于P,则使得
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742006_ST/1.png)
的M点的概率为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742006_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742006_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742006_ST/4.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742006_ST/5.png)
考点分析:
相关试题推荐
某单位有7个连在一起的车位,现有3辆不同型号的车需停放,如果要求剩余的4个车位连在一起,则不同的停放方法的种数为( )
A.16
B.18
C.24
D.32
查看答案
已知O是△ABC所在平面内一点,D为BC边中点,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742004_ST/0.png)
,那么( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742004_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742004_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742004_ST/3.png)
D.
查看答案
一个空间几何体的三视图及部分数据如图所示(单位:cm),则这个几何体的体积是( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742003_ST/images0.png)
A.3cm
3B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742003_ST/0.png)
cm
3C.2cm
3D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742003_ST/1.png)
cm
3
查看答案
已知等差数列{a
n}的前n项和为S
n,若a
4=18-a
5,则S
8=( )
A.72
B.68
C.54
D.90
查看答案
若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183623856374231/SYS201310241836238563742001_ST/0.png)
=a+bi(a,b∈R),i是虚数单位,则乘积ab的值是( )
A.-15
B.3
C.-3
D.5
查看答案