设f(x)=log(1/2)[a^2x+2(ab)^x-3b^2x+1](a>0,b>0),解不等式f(x)

问题描述:

设f(x)=log(1/2)[a^2x+2(ab)^x-3b^2x+1](a>0,b>0),解不等式f(x)