Question

已知f(x)的定义域0到正无穷的增函数,f(2)=1,对任正实数x,y满足f(x*y)=f(x)+f(y),解不等式f(

Answer 1

3=1+1+1=f(2)+f(2)+f(2)=f(2×2×2)=f(8)

f(x)+f(x-2)