Here is a YouTube video about Eulers Formula Magnitude, and is part of a growing collection of videos I have found to be useful. The reason is looking at the complex exponential term in Euler's Formula. We see that it represents a complex number, at a distance of 1 from the origin of the complex plane and understanding science related to software defined radio.
This tutorial, "Eulers Formula Magnitude" is free education you can watch, which will help you deepen your knowledge and be better prepared for licence exams, schoolwork, or operating radio equipment.