Necessity of complex numbers

Introduction to complex numbers | Imaginary and complex numbers | Precalculus | Khan Academy

Imaginary Numbers - Basic Introduction

Introduction to i and imaginary numbers | Imaginary and complex numbers | Precalculus | Khan Academy

Simplifying imaginary numbers to higher exponents

Complex Numbers - Introduction to Imaginary Numbers | Don't Memorise

Complex Numbers - Powers of i | Don't Memorise

3.1.l Complex numbers 7 - Equality of complex numbers

Finding The Roots Of A Complex Number

Imaginary Numbers Are Real [Part 1: Introduction]

How Imaginary Numbers Were Invented

Complex Numbers in Quantum Mechanics

Complex Numbers - Basics | Don't Memorise

Equal Complex Numbers will Have Same Real and Imaginary Parts

Pre-Calculus - Verifying that two complex numbers are equal 2, (a+1)+(b+2)i=5+7i

The Real World Uses of Imaginary Numbers

Imaginary Numbers Are Just Regular Numbers

10 - What are Imaginary Numbers?

Algebra 2 - When Complex numbers are equal to each other, 5x + 1 + (3 + 2y)i = 2x - 2 + (y - 6)i

Solving Equations With Complex Numbers