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When thinking about exam texts, you should first look at past paper examples to get a feel for what kind of questions you will be asked. For example, if the theme of a paper is "love", you will, of...

Label the equations (1): y=x/2 + 2 and (2): 2y+3x=12. Firstly, multiply equation (1)by 2, this will give you (1a): 2y=x+4, then, substitute (1a) into (2). This gives you (x+4)+3x=12. Therefore, 4x+4=12. 4x=1...

First, we need to factorise the equation on the left hand side, this can be done by finding two numbers that add together to make the 'b' coefficient (-9) and multiply to make the 'c' coefficient (20). This ...

Due to notation difficulties, S = integral sign. This is a straightforward integration question, firstly we expand the brackets: f'(x)=3x^2 - 3x f(x)=S(3x^2 - 3x)dx f(x)=3/3x^3 - 3/2x^2 + C f(x)=x^3 - 3/2x^2...

As output increases it is a general rule that cost decreases, but why is this? Let's look at the principle of EOS and how they reduce costs. Starting with Technical EOS, here you have one fixed cost for the ...