设集合
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783020_ST/0.png)
,B={x|g(x)=lg(4x-x
2)}.
(1)集合C=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783020_ST/1.png)
,若a∈B,且a∉C,试求实数a的取值范围;
(2)若命题P:m∈A,命题Q:m∈B,且“P且Q”为假,“P或Q”为真,试求实数m的取值范围.
考点分析:
相关试题推荐
如图,PA垂直于矩形ABCD所在平面,PA=AD,E、F分别是AB、PD的中点.
(1)求证:AF∥平面PCE;
(2)求证:平面PCE⊥平面PCD.
查看答案
已知递增等比数列{b
n}满足b
2•b
4=64,b
5=32,数列{a
n}满足
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783018_ST/0.png)
.
(Ⅰ)求数列{a
n}的通项公式;
(Ⅱ)设数列{c
n}的通项公式
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783018_ST/1.png)
,求数列{c
n}的前n项和T
n.
查看答案
已知在△ABC中,a,b,c分别为角A,B,C所对的边,向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783017_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783017_ST/1.png)
,且
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783017_ST/2.png)
(1)求角B的大小;
(2)若角B为锐角,a=6,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783017_ST/3.png)
,求实数b的值.
查看答案
已知圆的半径为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783016_ST/0.png)
,圆心在直线y=2x上,圆被直线x-y=0截得的弦长为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783016_ST/1.png)
,求圆的方程.
查看答案
对大于1的自然数m的三次幂可用奇数进行以下方式的“分裂”:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783015_ST/0.png)
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783015_ST/1.png)
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102429882678385/SYS201311031024298826783015_ST/2.png)
….仿此,若m
3的“分裂数”中有一个是59,则m的值为
.
查看答案