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First of all cover the basics. Find out your exam date as early as possible, its duration and whether or not it is closed book. This last part is especially important as it dictates the emphasis on learni...

In this question we will label the washing machine as x. In order to answer this question we need to understand that the final price of the washing machine (£600) is the price of the machine with...

In Latin, the accusative case is used for describing how long an action took.
For example: 'poeta multos annos errabat' (The poet wandered for many years)
The ablative case can des...

Helicase breaks hydrogen bonds between the 2 DNA strands to separate them1 DNA strand acts as template (the sense strand)Free RNA nucleotides then attach to exposed complementary bases on the sense strand...

We use the chain rule. Let u(x)=exp(x), v(x)=x^1/2, w(x) = tan(x).
Then f(x) = u(v(w(x))). So by the chain rule, f'(x) = u'(v(w(x)))*(v(w(x)))'.
u'(x) = exp(x).
By the chain rule...