Question

13.5
Consider the logarithm function \(log=exp^{-1}\) on \(\mathbb{R}\). Prove:
e) \(log(]0, +\infty)) = \mathbb{R}\)

Answer 1

same as previous one yes? domain of log is range of exp and vice versa

Answer 2

yes..

Answer 3

so all you have to say is that the domain of \(\exp\) is \(\mathbb{R}\)

Answer 4

:) wow so short answer i like it..