Top answers

How do I multiply and divide indices?

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 = 3x3x3x3 and a 2 = axa. If two indices have the...
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Answered by Sarah M. • Maths tutor
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I've been told that I can't, in general, differentiate functions involving absolute values (e.g. f(x) = |x|). Why is that?

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 remember t...
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Answered by Richard W. • Maths tutor
3503 Views

What will make my personal statement stand out?

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 interested to see...
DT
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What kind of techniques will make my history essays better?

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 to...
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Answered by Dixi T. • History tutor
2735 Views

What are examiners looking for in my essay's?

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 interpretation ...
DT
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