若实数x、y满足(x-2)
2+y
2=3,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102448158051651/SYS201311031024481580516014_ST/0.png)
的最大值为
.
考点分析:
相关试题推荐
设P为圆x
2+y
2=1上的动点,则点P到直线3x-4y-10=0的距离的最小值为
.
查看答案
一个水平放置的三角形的斜二测直观图是等腰直角三角形A′B′O′(如图),若O′B′=1,那么原△ABO的面积是
.
查看答案
圆C:x
2+y
2-2x-4y+4=0的圆心到直线3x+4y+4=0的距离d=
.
查看答案
已知点P(1,2,3),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102448158051651/SYS201311031024481580516010_ST/0.png)
,它们在面xoy内的射影分别是P',Q',则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102448158051651/SYS201311031024481580516010_ST/1.png)
=
.
查看答案
直线x-2y-3=0与圆(x-2)
2+(y+3)
2=9交于E,F两点,则△EOF(O是原点)的面积为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102448158051651/SYS201311031024481580516009_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102448158051651/SYS201311031024481580516009_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102448158051651/SYS201311031024481580516009_ST/2.png)
D.
查看答案