Question: what is the inverse of the logarithmic function f(x)=log2^x?
Answer: Exponentiation and log are inverse functions. Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=2x f - 1 ( x ) = 2 x is the inverse of f(x)=log2(x) f ( x ) = log 2 ( x ) .