# Arithmetic Course/Types of Number/Imaginary Number

## Contents

## Imaginary Number[edit]

Imaginary Number is defined as

## Mathematic Operations[edit]

### Addition[edit]

- j + 0 = j
- j + j = 2j
- j + (-j) = 0

### Subtraction[edit]

- j - 0 = j
- j - j = 0
- j - (-j) = 2j

### Multiplication[edit]

- j x 0 = 0
- j x j = j
^{2} - j x (-j) = -j
^{2}

### Division[edit]

- j / 0 = 00
- j / j = 1
- j x (-j) = -1