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There are two types of inflation. The first, cost-push inflation, is where the RPI rises due to increased costs for firms across the macroeconomy. This could be down to a rise in the cost of imported raw ...

The working memory model was designed by Baddeley and Hitch, who criticised the multi store model of memory as being too unitary. The multi store model showed the short term memory as being one very simpl...

Consensus theorists support the idea that everyone in society has a shared, communal goal which they work together in harmony to achieve. This is known as social solidarity. One consensus theorist, Emile ...

4x/(x²-9)-2/(x+3) = 4x/((x+3)(x-3))-2/(x+3) = 4x/((x+3)(x-3))-2(x-3)/((x+3)(x-3)) = (4x-2(x-3))/((x+3)(x-3)) = (2x+6)/((x+3)(x-3) = (2(x+3))/((x+3)(x-3)) = 2/(x-3)

For x = 2, y = 16. Calculate the gradient of the curve at y = 2, dy/dx = 6x^2, dy/dx = 24. This is also the gradient of the tangent to the curve at x = 2. It is a rule that the products of the gradients o...