Week 17: Algebra of complex numbers

Advanced Engineering Mathematics, by Erwin Krayszig, 10th edition

Chapter 13 Colmplex Numbers and Functions. Complex Differentiation

Sec 13.1 Complex Numbers and Their Geometric Representation (pages: 608 -  613)

Sec 13.2 Polar Form of Complex Numbers, Powers and Roots (pages: 613 - 618)