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已知函数f(x)=log2x(x>0)的反函数为g(x),且有g(a)g(b)=...
已知函数f(x)=log
2x(x>0)的反函数为g(x),且有g(a)g(b)=8,若a>0,b>0,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212147954836030/SYS201310232121479548360010_ST/0.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131023212147954836030/SYS201310232121479548360010_ST/1.png)
的最小值为( )
A.9
B.6
C.3
D.2
考点分析:
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