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First of all key elements required for this question is the knowledge or retrival of these equations: tan² + 1 =sec² A   tan(A-B) = (tanA-tanB)/(1+tanAtanB) so for the first equation...

To answer this we will need to use the product rule which is as follows: For y=uv, dy/dx=u'v+uv' where u' is the derivative of u and v' is the derivative...

In Othello Iago’s sexist and misogynistic attitudes towards women are evident, where he suggests that ‘women rise to play and go to bed to work.’ This assumption of women’s position in society re...

Because enzymes have a specific tertiary structure which defines the 3D shape of the active site. This means that only a substrate with a complimentary shape to the active site can bind to it and form an ...

One very simple way to structure essays at A-Level and GCSE is to follow the same pattern so that you don't get confused, or end up waffling. I always start with an introduction, pick out three or four ma...