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Epistemology is the theory of knowledge, with specific regards to its method, validity and scope. It helps us to define the distinctions between justified belief and opinions, whilst also gaining an under...
It is important to remember that when writing essays in exams, the examiner is interested in the way in which you engage with the question and not merely the content of the course. What is so exciting abo...
This comes up in C4 in A level maths and differentiating it could come up in C3. You can write a^x as exp(ln(a^x))=exp(xln(a)) then differentiating this, you get ln(a)exp(xln(a))=ln(a)a^x. By differen...
Prove by contradiction: Assume negation to be true i.e. √2 is rational Then √2 can be written in the form a/b where a and b are integers with no common factor (the fraction cannot be simplified) => a/b...
Power stations use step-down transformers to decrease the voltage of the electrical output. The power lines have a constant resistance (say, R Ohms) which means there is a power loss across the lines give...
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