IB maths AI Complex Number (HL)

Complete course on the topic of Complex Number designed for IB Math AI HL by an IB examiner
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IB AI maths Complex Number
The definition of Complex Number
Polar form and DeMovire's Theorem
Deriving Trigonometric Identities from Complex number


  • IB maths AA HL students
  • Simple Trigonometry


A free course on the topic of Complex Number, designed according to the latest syllabus of IB Math AI HL, under topic 1: Algebra

Designed to the need of an HL student. It also included exam question demonstrations to show IB exam skills.

This course is meant to be quick but covers all the essentials of the topic Complex Number. 

What will students learn in your course?

Definition of Complex Number

Use of complex Plane

Polar form and De Moivres's Theorem

Roots of Complex numbers

Trigonometric Identities from De Moivres's Theorem

Detail Content:

Complex Number

Complex plane

Polar Form

Euler Form

Sums, products and quotients in Cartesian, polar or Euler forms and their geometric interpretation

Complex conjugate roots

De Moivres's theorem

Powers and roots of complex numbers

Bonus content: Trigonometric Identities from De Moivres' Theorem

You are also welcomed to message me if you have any trouble.

Also check out my YouTube channel KIDD WSTWTY Math Channel and my Patreon Membership @ KiddCheung

Description from IB Syllabus:

AHL content

Recommended teaching hours: 20

The aim of the AHL content in the number and algebra topic is to extend and build upon the aims, concepts

and skills from the SL content. It introduces students to some important techniques for expansion,

simplification and solution of equations. Complex numbers are introduced and students will extend their

knowledge of formal proof to proof by mathematical induction, proof by contradiction and proof by


Who this course is for:

  • IB maths students

Course content

4 sections6 lectures1h 11m total length
  • Introduction


Math, teaching and exam enthusiast
Kidd Cheung
  • 4.3 Instructor Rating
  • 32 Reviews
  • 1,240 Students
  • 7 Courses

Kidd is a full time math tutor located in Hong Kong. He has been teaching IB Math for more than 7 years now and He obtained his math degree from the University of Hong Kong. He is also an IB examiner.

Kidd hopes he can help you with your exam and math journey.