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First you need to understand what an index (or power) is. It’s just a compact way of writing a number multiplied by itself a number of times. For example:

 3^4...

When you differentiate a function which has only one parameter, like f(x), you are finding a new function, f'(x), which gives the gradient of your original function at every point. You'll probably remembe...

Universities get a huge amount of applications each year. Each one will contain a person trying to explain to them why they should be let into that specific university. What they are really interes...

In history, teachers and examiners are always looking for people to know arguments and more importantly how to argue them effectively. Each topic in history has more than one viewpoint and it is up to you...

The amazing thing about English Literature is your freedom to take the essay in any individual direction you want, especially in A level. Examiners will be looking for individual analysis and interpretati...