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Writing an A Level essay which successfully hits the mark scheme with fluidity and a clear style can sometimes seem to be a daunting task. Where at GCSE level it is adequate to simply demonstrate subject kno...

When writing any essay, you must always include an introduction, a main body of text, and a conclusion. It's like a sandwich, with the good meaty stuff right in the middle. The introduction, in any essay, ne...

There are different ways of factoring an equation depending on the type. A few are highlighted here: 1) Taking out a common factor General formula : ab + ac = a ( b+ c) Step 1: realise that all terms of the ...

for this type of question, integral by parts should be used . This involves using the formula for intregation by parts: lets first break apart the x and e 10x into two parts - "u" and "v"...

X~Binomial (n,p) with n= fixed number of independent trials and p= probability of a trail succeeding. X ~Binomial can be approximated to Y~ Normal if: 1) The number of trials, n, is large 2) Probability of s...