# Numbers | Maths with Lemon

Source: https://mathswithlemon.io/ai-numbers-Complex%20Numbers.html


#### Complex Numbers


##### What you have to know :

- You must be able to solve quadratic equations (If not, check this lesson)
- How to work with trigonometric properties (If not, check this lesson)

##### Key Points

- 1. Watch the video:
- 2. Read this presentation
- 3. Watch this video about the recursive formula of arithmetic sequences.
- 4. Check these notes as a revision for arithmetic sequences

#### The complex plane


##### What you have to know :

- You must know the vector properties (If not, check this lesson)
- How to use trigonometry (If not, check this lesson)

##### Key Points

- 1. Watch the video:
- 2. Read this presentation
- 3. Watch this video about the recursive formula of arithmetic sequences.
- 4. Check these notes as a revision for arithmetic sequences

#### Euler's form / De Moivre Theorem


##### What you have to know :

- How to manipulate exponential expressions (If not, check this lesson)

##### Key Points

- 1. Watch the video:
- 2. Read this presentation

### IB Past Paper Problems

Select a topic and unit, then click the button below to get a new problem.

Press the button to start!

How was this problem?