If z1 i and z2 1 i, verify that Ln(z1z2) Ln z1 Ln z2
Chapter 17, Problem 45(choose chapter or problem)
If \(z_{1}=i\) and \(z_{2}=-1\) i, verify that
\(\operatorname{Ln}\left(z_{1} z_{2}\right) \neq \operatorname{Ln} z_{1}+\operatorname{Ln} z_{2}\).
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer