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Any quadratic equation, that is, an equation of the form ax2+bx+c=0, can be factorised, which means it is broken down into its linear factors. This means it wi...
Simplifying a surd means to express it using smaller numbers, making it easier to use in calculations. There are a couple of facts you will need to learn about surds, these are, 1) sqrt(a x b) = s...
In Spanish there are two ways of saying to be.Ser is generally used for things that don’t change too much – inherent characteristics of people or things. Some examples are marital status, height, oc...
Ohm's Law
The key to writing a good composition for A level music is keeping to a specific style which you set out in the accompanying explanation of the piece that you provide with it. In choosing a style or genre...
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