阅读下面的程序框图,输出的结果为
.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735010_ST/images0.png)
考点分析:
相关试题推荐
设二项式
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735009_ST/0.png)
展开式各项的系数和为 P,二项式系数之和为S,P+S=72,则正整数n=
,展开式中常数项的值为
.
查看答案
已知数列{a
n}是公差不为0的等差数列,S
n为数列{a
n}的前n项和,a
1+a
3=a
5,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735008_ST/0.png)
=
.
查看答案
已知函数f(x)的定义域为[-2,+∞),部分对应值如下表,
f′(x)为f(x)的导函数,函数y=f′(x)的图象如图所示:若两正数a,b满足f(2a+b)<1,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735007_ST/0.png)
的取值范围是( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735007_ST/images1.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735007_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735007_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735007_ST/3.png)
D.(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735007_ST/4.png)
,3)
查看答案
在教材中,我们学过“经过点P(x
,y
,z
),法向量为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735006_ST/0.png)
的平面的方程是:A(x-x
)+B(y-y
)+C(z-z
)=0”.现在我们给出平面α的方程是x-y+z=1,平面β的方程是
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735006_ST/1.png)
,则由这两平面所成的锐二面角的余弦值是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735006_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735006_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735006_ST/4.png)
D.
查看答案
已知Ω={(x,y)|0≤x≤1,0≤y≤1},A是由直线x=1,y=0和曲线y=x
3围成的曲边三角形的平面区域,若向区域Ω上随机投一点P,则点P落在区域A内的概率为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735005_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735005_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183014176773548/SYS201310241830141767735005_ST/2.png)
D.
查看答案