# Surds

Help with surds,simplifying etc

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- Created by: gogos
- Created on: 28-06-10 22:57

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Surds

An example of a surd

Surds can also be shown as irrational numbers, which are often used in the

place of decimals in calculations.

However, to make the result more accurate you need to carry out a

calculation using the surd which is called RATIONALISING. The aim of

rationalising is to remove the surd from the denominator.

In order to do this you:

1. Firstly you need to times the surd by 1, in the form of the surd,

2. This would give,

And

3. So after rationalising the denominator,

=

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