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When tackling a question which asks you why a historical process or event occurred, the first thing to remember is that any answer you give must approach the question from a variety of different angles; n...

whenever you move a term across the equals sign, the sign changes. So first we are going to move all of the x terms onto the left side and all of the number terms onto the right side, remembering that if ...

While the introduction and the main body of an essay are obviously very important to gaining a good mark, the most integral aspect of essay writing is the conclusion. A paragraph at the very end of an ess...

Make use of identity sech^2(x) = tan^2(x) + 1

=> 2{tan^2(x) + 1} = 3 + tan(x)

Multiply out brackets and rearrange

=> 2tan^2(x) - tan(x) - 1 = 0

Use quadratic formula w...

As this question is worth 6 marks, 6 different points need to be made to get all the marks. These could be two from each structure that is given. The teeth in the mouth break down food into smaller pieces...