Introduction to complex numbers
How do imaginary numbers work?
Complex numbers: real and imaginary parts
Adding and subtracting complex numbers
The polar form of complex numbers
De Moivre's theorem: raising a complex number to a power
Finding roots of a complex number
The position of roots on an Argand diagram
Expansion of
sinnq and cosnq using De
Moivre's theorem
The relationship between hyperbolic and
trigonometric functions