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How should I approach my GCSE maths paper?

The way that papers are set is that you usually can allow just over a minute for each mark. This means if a question is 6 marks, it should take about 6 minutes to answer. It is generally a good idea to be qu...
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Answered by Kemba M. • Maths tutor
7038 Views

The sequence xn is given by the formula x_n = n^3 − 9n^2 + 631. What is the largest value of n for which x_n > x_(n+1)?

We know that x_n > x_(n+1) is true if and only if x_n - x_(n+1) > 0 is true.So x_n - x_(n+1) = (n^3 − 9n^2 + 631) − ((n + 1)^3 − 9(n + 1)^2 + 631) = (n^3 − n^3 − 3n^2 − 3n − 1) − 9(n^2 − n^2 − 2n − 1) ...
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Answered by Tadas T. • MAT tutor
7564 Views

What is the law of diminishing (marginal) returns?

This a fundamental for theory of the firm. It explains the shape of the marginal product (MP) curve! Formal Definition: When one or more factors are held fixed, there will come a point beyond which the extra...
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Answered by Yasmin A. • Economics tutor
9728 Views

Do I need to have shadowed a GP before applying?

In short, no. It's an unfortunately common myth that shadowing a GP is essential for a successful application but this is very much not the case. Basically, what a medical school wants to see in your persona...
VJ
2703 Views

How do I know when to use etre as an auxilliary verb in the perfect tense?

There are a list of set verbs which always take the verb etre as their auxilliary in the perfect tense which you will need to learn. To help you remember them you can use the mnemonic MR V DREAMPANTSMourirRe...
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Answered by Ellen K. • French tutor
4253 Views