# Search by Topic

#### Resources tagged with Argand diagram similar to An Introduction to Complex Numbers:

Filter by: Content type:
Stage:
Challenge level:

##### Other tags that relate to An Introduction to Complex Numbers
Quadratic equations. Exponential series. Rotations. Argand diagram. Complex numbers. Interactivities. Vectors. Addition of vectors. Trigonometric identities. Sine.

### An Introduction to Complex Numbers

##### Stage: 5

A short introduction to complex numbers written primarily for students aged 14 to 19.

### Complex Rotations

##### Stage: 5 Challenge Level:

Choose some complex numbers and mark them by points on a graph. Multiply your numbers by i once, twice, three times, four times, ..., n times? What happens?

### Conjugate Tracker

##### Stage: 5 Challenge Level:

Make a conjecture about the curved track taken by the complex roots of a quadratic equation and use complex conjugates to prove your conjecture.

### Cube Roots

##### Stage: 5 Challenge Level:

Evaluate without a calculator: (5 sqrt2 + 7)^{1/3} - (5 sqrt2 - 7)^1/3}.