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There are 3 main ways of solving a quadratic equation x^2 + bx + c = 0 (we'll suppose the coefficient of x^2 is 1 for now). The first is factorisation, where if you can spot that you can factorise the exp...

This is a question which tests your knowledge of how to use trigonometric identities as well as integration. As there is no way to immediately integrate tan^2(x) using well known trigonometric integrals a...

In German, unlike in English, there are 3 different ways to address someone and say 'you'. In English, we have one easy way to address one person, two people, or a group of people, and it doesn't matter i...

An introduction is the first thing that an exam marker reads, and often it forms their impression of the whole answer - to write an effective introduction is therefore really important to the rest of your...

Allopatric speciation occurs when two species are living in separate environments and therefore there is no gene flow between the populations. This will then cause the populations to differentiate (change...