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1. Technical economies of sale: Large firms can utilize more fully the machines and plant equitments and thus reduce the average cost.

2.Managerial economies of scale: A large firm with a...

This is a question testing the knowledge of the equations of constant acceleration (Suvat equations)First convert the question into a standard form. For example by writing out the variables as follows s (...

The easiest way of approaching this question is to use De Moivre's formula: e^(inx) = cos(nx) + isin(nx) from which it is simple to show that cos(nx) = (e^(inx) + e^(-inx)) / 2 and sin(nx) = (e^(inx))- e^...

The terms left and right wing refer to the political spectrum, usually expressed in terms of a line with the far left at one end, the far right at the other and the centre in the middle.

In Br...

At GCSE level, competent engagement with the historical background and a decent argument are sufficient to secure a good grade. 
At A-level, the phrasing and structure of the essay becomes more criti...