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Whether you are studying a play, novel or poem the key revision techniques are very similar. Firstly, I would say the most important aspect is to familarise yourself with the text itself. For example, wit...

Secondary Structure
The secondary structure of a protein refers to the basic foldings of a protein the forms of:
1. an alpha helix
...

Primary sources are written by those who experienced the topic in question first hand. They come in a variety of different formats including but not limited to journal entries, letters, recorded interv...

Pythagos Theorem states that 

a^2 + b^2 = c^2

So using the figures we are given the equation would look like this:

7^2 + 11^2 = c^2

We square the...

You should begin by identifying all the Trigonometric Identities that may be useful in this problem. Specifically, cosecx=1/sinx tanx=sinx/cosx 1/cosx=secx and possibly tan^2x + 1= sec^2x. I began by c...