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Remember to always structure your essay as Point Evidence Explain.For example:(Point:)In The History Boys, the playwright Alan Bennet uses the characters of Hector, Irwin and the Headmaster to portray juxtap...

'Find dy/dx' means it wants us to differentiate. The rules for this are multiply the coefficient (number before x) by the current power, then decrease the power by 1.In this example:5x 3 would become 15x 2 ,...

Rearrange the expression to create a familiar function with a known differencial: arcos(x)=y x= cos(y) Differenciate x with respect to y: dx/dy= -sin(y) We know that dy/dx= 1/(dx/dy), so rearange to find an ...

There are four main different processes of erosion in a river: abrasion, attrition, hydraulic action and solution.Abrasion is when large particles (stones and rocks) being transported in the river's load are...

In order to weigh up which factor was the most important you need to look at each factor separately and decide to what extent that effected the problem in question. For example, if you were looking at what f...