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While there is no exact formula for what constitutes a good history essay introduction, with differences depending on the type of essay (for example, a timed exam or coursework) and the examination board,...

To answer this question we need to decide which differentiation rule to use . The quotient rule looks like the obvious choice, so lets try that. If f(x)=u(x)/v(x) (being careful that v(x) is not zero anyw...

A quadratic equation is one that contains an x^2 term that has a non 0 coefficient, There are three basic methods for solving a quadratic equation; factorising, completing the square, and the quadratic fo...

Parliamentary sovereignty is the idea, originating in this form in the United Kingdom legal system, that ‘Any Act of Parliament, or any part of an Act of Parliament, which makes a new law, repeals or modi...

The most common question in history A-level source papers is “With reference to these sources and your understanding of the historical context, assess the value of these sources to an historian”. The most...