满分5 >
高中数学试题 >
以椭圆的短轴的一个端点B(0,1)为直角顶点,作椭圆的内接等腰直角三角形的个数为...
以椭圆
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232009_ST/0.png)
的短轴的一个端点B(0,1)为直角顶点,作椭圆的内接等腰直角三角形的个数为( )
A.0个
B.1个
C.2个
D.3个
考点分析:
相关试题推荐
如图所示的三角形数阵叫“莱布尼兹调和三角形”,它们是由整数的倒数组成的,第n行有n个数且两端的数均为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/0.png)
(n≥2),每个数是它下一行左右相邻两数的和,如
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/2.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/3.png)
,…,则第7行第4个数(从左往右数)为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/images4.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/4.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/5.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232008_ST/6.png)
D.
查看答案
实数a,b,c,d满足a<b,c<d,a+b<c+d,ab=cd<0,则a,b,c,d四个数的大小关系为( )
A.c<a<d<b
B.c<d<a<b
C.a<c<b<d
D.a<b<c<d
查看答案
已知△ABC中,AB=AC=4,BC=4
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232006_ST/0.png)
,点D为BC边的中点,点P为BC边所在直线上的一个动点,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232006_ST/1.png)
满足( )
A.为定值4
B.最大值为8
C.最小值为2
D.与P的位置有关
查看答案
已知点F是双曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232005_ST/0.png)
的左焦点,点E是该双曲线的右顶点,过F且垂直于x轴的直线与双曲线交于A,B两点,若△ABE是直角三角形,则该双曲线的离心率e为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232005_ST/1.png)
B.2
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232005_ST/2.png)
D.
查看答案
若函数f(x)=(k-1)a
x-a
-x(a>0,a≠1)在R上既是奇函数,又是减函数,则g(x)=log
a(x+k)的图象是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232004_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232004_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439534323217/SYS201311031024395343232004_ST/images2.png)
D.
查看答案