Complex Trigonometric Functions

A brief overview of complex trigonometric functions, how they are derived, what the relationships are between them, and an example problem involving them.

[sschw]

didn't understand the argument part being strictly imaginary, how the two parts come together, that is, the log part plus the argument part. And what happen to the i on the left side of the equation to only end up with z. Any suggestions on videos that explain this theory would be appreciated. thanks for a detail video though. It was helpful.