满分5 >
高中数学试题 >
已知空间两点A(-3,-1,1),B(-2,2,3),在OZ轴上有一点C,它与A...
已知空间两点A(-3,-1,1),B(-2,2,3),在OZ轴上有一点C,它与A,B两点距离相等,则点C坐标是 .
考点分析:
相关试题推荐
邮局规定,邮寄包裹,在5千克内(含5千克)每千克5元,超过5千克时,超过部份按每千克3元收费,则邮费与邮寄包裹重量的函数关系式为
.
查看答案
设A(7,-4),B(-5,6),则过AB中点且垂直AB的直线方程的一般式是
.
查看答案
已知0<a<1,0<b<1,如果
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028011_ST/0.png)
<1,那么x的取值范围为
.
查看答案
球的表面积与它的内接正方体的表面积之比是
.
查看答案
已知f(x)=|lgx|,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/0.png)
、f(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/1.png)
)、f(2)的大小关系是( )
A.f(2)>f(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/2.png)
)>
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/3.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/4.png)
>f(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/5.png)
)>f(2)
C.f(2)>
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/6.png)
>f(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/7.png)
)
D.f(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/8.png)
)>
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230809798502882/SYS201311012308097985028009_ST/9.png)
>f(2)
查看答案