满分5 >
高中数学试题 >
已知O是坐标原点,点M的坐标为(2,1),若点N(x,y)为平面区域上的一个动点...
已知O是坐标原点,点M的坐标为(2,1),若点N(x,y)为平面区域
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683014_ST/0.png)
上的一个动点,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683014_ST/1.png)
•
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683014_ST/2.png)
的最大值是
.
考点分析:
相关试题推荐
直线y=x的任意点P与圆x
2+y
2-10x-2y+24=0的任意点Q间距离的最小值为
.
查看答案
在
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683012_ST/0.png)
的二项展开式中,常数项等于
.
查看答案
已知集合M={(x,y)|y=f(x)},若对于任意(x
1,y
1)∈M,存在(x
2,y
2)∈M,使得x
1x
2+y
1y
2=0成立,则称集合M是“垂直对点集”.给出下列四个集合:
①M={
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683011_ST/0.png)
};
②M={(x,y)|y=sinx+1};
③M={(x,y)|y=log
2x};
④M={(x,y)|y=e
x-2}.
其中是“垂直对点集”的序号是( )
A.①②
B.②③
C.①④
D.②④
查看答案
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683010_ST/images0.png)
函数f(x)=Asin(ωx+φ)(其中A>0,ω>0,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683010_ST/0.png)
)的图象如图所示,为了得到y=cos2x的图象,则只要将f(x)的图象( )
A.向左平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683010_ST/1.png)
个单位长度
B.向右平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683010_ST/2.png)
个单位长度
C.向左平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683010_ST/3.png)
个单位长度
D.向右平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683010_ST/4.png)
个单位长度
查看答案
执行如图所示的程序框图,输出的S值为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683009_ST/images0.png)
A.4
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683009_ST/0.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124428475968364/SYS201310251244284759683009_ST/1.png)
D.-1
查看答案