∵抛物线y = f(x)的对称轴为直线 x - 1/2 = 0 f[log2(a)]=b 言下之意log2(a)=0 或 1∴a =2a = 1 （舍去）因此,根据log2[f(a)] =2可知： b = 2设log2(x) = t则：x = 2^t∴f（t ) = (2^t）&...