eln(x) = x and ln(ex) = x

Basic Properties of Logarithms

As a review, recall the following basic rules of logarithms:

  1. log(MN) = log(M) + log(N)
  2. log( = log(M) - log(N)
  3. log(Mn) = n(log(M))
  4. logaa = 1
  5. loga1 = 0