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How to integrate by parts

Sometimes while integrating, we may come across an expression that is not a polynomial, and thus we cannot use the convenient power rule to integrate. Consider the function y=xcos(x). It is not immediately c...
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Answered by Dennis L. • Maths tutor
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What are the steps in answering a source based question?

The best way to tackle a source based question is to use CATPAD. In this: C: Content, i.e. what is actually in the source A: Author, i.e. whow wrote it, if they had any pre-exisiting beliefs you know about T...
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Answered by Beth P. • History tutor
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Differentiate y = 4ln(x)x^2

So we want to differentiate y = 4x 2 ln(x) with respect to y. For this we need to use the product rule. The product rule is D {f(x)g(x)} = f(x)g'(x) + g'(x)f(x) We can therefore make f(x) = 4x 2 and g(x) = l...
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Answered by Beth P. • Maths tutor
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Explain the main sources of monopoly power.

- Barriers to entry, for example patents, restrict the number of competitors in a market. They may be deliberate, e.g. patents, or inherent in the good, e.g. water. Where they are inehrent, a 'natural monopo...
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Answered by Beth P. • Economics tutor
80968 Views

What are two ways in which the agents of socialisation influence ethnic identity?

One of the best ways to set out this question is to split it into 5 separate points per paragraph. There would be two paragraphs needed for this question as the question asks for two ways. Each paragraph is ...
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Answered by Maddy M. • Sociology tutor
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