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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 ...

A question which blights both GCSE and A Level students and becomes particularly relevant when doing translation work. The imperfect tense refers to actions that took place over a long period in the past, 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...