满分5 >
高中数学试题 >
函数y=f(x)图象与y=log2x的图象关于直线y=x对对称,则f(x)= ....
函数y=f(x)图象与y=log2x的图象关于直线y=x对对称,则f(x)= .
考点分析:
相关试题推荐
设函数f(x)定义域为D,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043009_ST/0.png)
,同时满足下列条件
①
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043009_ST/1.png)
②
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043009_ST/2.png)
③
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043009_ST/3.png)
的函数是( )
A.y=x
2B.y=log
0.5C.y=lg
D.y=3
x
查看答案
已知函数f(x)=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043008_ST/0.png)
若函数g(x)=f(x)-m有3个零点,则实数m的取值范围( )
A.(0,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043008_ST/1.png)
)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043008_ST/2.png)
C.(0,1)
D.(0,1]
查看答案
将函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043007_ST/0.png)
的图象向右移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043007_ST/1.png)
个单位所得函数解析式是( )
A.y=cos2
B.y=sin2
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135004309/SYS201311031027391350043007_ST/2.png)
D.
查看答案
若a>0,b>0,且函数f(x)=4x
3-ax
2-2bx+2在x=1处有极值,则ab的最大值等于( )
A.2
B.3
C.6
D.9
查看答案
在△ABC中,若sin
2A+sin
2B<sin
2C,则△ABC的形状是( )
A.锐角三角形
B.直角三角形
C.钝角三角形
D.不能确定
查看答案