# AS Mathematics – The Complex Conjugate

## Rationalising Denominators using the Complex Conjugate

Students recap how to expand a the product of two brackets involving surds.

Later, as learning progresses they learn how to rationalise a denominator where an irrational term appears on the numerator and denominator.

Indices and Surds AS Mathematics

### Mr Mathematics Blog

#### Writing a Single Column Vector

Visual and algebraic methods for writing a single column vector.

#### Teaching Reciprocals of Numbers and Terms

How to teach working out the reciprocal of integers, fractions, decimals and mixed numbers.

#### Proving Geometrical Relationships using Algebra

How to teach proving geometrical properties using algebra.