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To factorise we must think what two numbers add up to 5 but times together to get 6. We know it is two numbers because it is x^(2). If it was x^(3) there could be 3 numbers, ect. We think what goes into 6: (...

Firstly we notice that the numerator is the derivative of the denominator so we can use integration by subsitution method. Setting u=x^(2)+1. We can differentiate this to get du/dx=2x Subbing in dx=du/2x . T...

PESTLE is a strategic analysis tool used to analyse the external elements affecting a business. It is a commonly used method that provides a comprehensive insight into the 6 major macro-environmental factors...

This is known as historiography. It is an important part of a high-level piece of History A-Level coursework. In brief, the aim is to explain the arguments of historians through the theory of history they em...

Mathematical induction is a method of proving if a mathematical statement is true for all natural numbers. To start with, I am going to give an analogical example in order to have a better understanding. Ima...