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In the IB, it is of paramount importance that one should strictly follow the subject guidelines. If you look at the marking rubric, it is important that you 1.) Effectively organise your arguments in order o...

When writing an essay, it is imperative that you close read quotations from the set text you are studying. However, this can be tricky- particurarly if you are not familiar with poetic devices, rhetoric and ...

Profit maximising is where a company sets a price and quantity that gets the company the highest profit possible. Profit maximising tends to occur in markets with low competition where the companies have hig...

Expand and simplify (5x – 2y)(3x – 4y) In this question, we are asked to 'expand' out the brackets. What this means is we need each term in one set of brackets (5x and -2y) to be multiplied by each term in t...

Equipotentials are lines of constant potential. In radial fields they join points of equal potential and are perpendicular to the field lines. They are concentric spherical surfaces about the centre of the b...