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To find the mean mark the formula is mean = ∑marks /number of students Therefore the mean for maths is 90 and so ∑marks = meannumber of students = 905 = 450 and the ∑marks for th...

dy/dx = tan³(x)sec²(x)

Integrate both sides ==> ∫dy= ∫ tan³(x)sec²(x) dx

Use the substitution u=tan(x)

And by different...

Simple diffusion, facilitated diffusion and active transport are three methods to transport various molecules across a membrane. Whilst similar in the overall effect, there are some major differences betw...

This is a question many nervous A Level French students ask throughout the academic year after they’ve found out that there is a big jump between GCSE and A Level French. Three elements can be identified ...

In a close reading extract, make sure you include the context and introduce your topic in your introduction. Then you must include a thesis statement: i.e: your argument and how you will intend on answeri...