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How should I structure an essay in an exam?

When writing an essay in an exam, try to ensure that your answer is focused, well structured and supported by evidence. To start with, it is a good idea to create a brief plan for your essay. This should inc...
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Answered by Charlotte K. • History tutor
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How can I calculate the maximum value of the compound angle formulae Rsin(x+a) and Rcos(x+a)?

Often, the compound angle formulae can seem quite offputting, especially since exam pressures can mean the random "R" at the front of an angle addition formulae appears confusing. However, finding ...
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Answered by Luke B. • Maths tutor
15971 Views

How do I work out the nth term?

The nth term falls into the topic of linear sequences . A linear sequence is a set of numbers (such as "1, 2, 3, 4, ...") that are connected by a rule , which applies to every number in the sequenc...
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Answered by Luke B. • Maths tutor
193406 Views

Solve the simultaneous equations: 3x+2y=4 and 4x+5y=17

To solve this equation we need to make it so the x's or the y's of each equation are equal. To do this we need to multiply one or both equations so we can take or add one of the equations to the other. We ar...
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Answered by Arron H. • Maths tutor
18300 Views

Why is atrial repolarisation not present on an ECG yet ventricular repolarisation is?

This is because the QRS complex on the ECG (which represents the Ventricular depolarisation) is at such a high magnitude, it masks the electrical signals that occur due to atrial repolarisation as these two ...
SG
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