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Integrate xcos(x) with respect to x

In order to do this question one has to first recognise that this is a product and thus has to be solved using Integration by parts. Firstly write out the formula: ∫u.dv/dx dx = uv - ∫v. du/dx dx (this is al...
DW
Answered by David W. Maths tutor
5220 Views

'Nous' or 'on'?

‘Nous’ is the first person plural, so it means ‘we’ or ‘us’. The verb following ‘nous’ will therefore be conjugated in the first person plural. ex: Nous mangeons du chocolat. ‘On’ is used to designate an und...
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Answered by Pamina H. French tutor
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What is the best way to structure Paper 2 poetry essays?

I always structure my essay into three thematic paragraphs (excluding an introduction and conclusion) using at least two poets I have studied and referencing at least three poems by each poet. For example, i...
JM
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2x + y = 12. P = xy^2. Show that P = 4x^3 - 48x^2 + 144x

We want to make P = xy^2 into something more complicated, which only has Xs, and no Ys. Firstly, you need to remember that when there are two equations, the question will almost definitely involve substituti...
JR
Answered by Jethro R. Maths tutor
4226 Views

Describe how the velocity and forces acting on a skydiver change during their fall (6 marks)

Different exam boards may want a different format of answer, so before beginning this question, it would be worth thinking how other six mark questions are marked in other papers. Edexcel want the student to...
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Answered by Jethro R. Physics tutor
15755 Views