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The point A lies on the curve with equation y = x^(1/2). The tangent to this curve at A is parallel to the line 3y-2x=1. Find an equation of this tangent at A. (PP JUNE 2015 AQA)  

My exact explanation would depend on the students level of understanding. The following answer assumes a basic understanding of differentiation and equations of lines; a) Gradient of tangent is equal to grad...
SC
Answered by Sefret C. • Maths tutor
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'No visible history': With reference to your wider reading, compare ways in which the impact of 'history' is explored in your two texts.

'Visible history' is a difficult term to unpack. For the most part, this is because of the term 'history' and the various ways it is interpreted as a concept and as something that we engage with. What is vis...
CF
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How can I make the transition from GCSE to A Level work in my essays?

History GCSE is mainly about demonstrating a depth and breadth of knowledge of the relevant factors relating to the question. To move up to A Level standard work you should aim to show how these factors - fo...
TG
Answered by Tom G. • History tutor
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How do you differentiate x^x?

To differentiate x x , we first let y = x x . ( Note that x x is not in the form x c where c is a constant or a x where a is a constant so the usual differentiation formulas cannot be used ). The trick here ...
AP
Answered by Anish P. • Maths tutor
3934 Views

How to score highly in grammar when writing an essay in an exam

First and foremost, try to get a good range of grammatical techniques when writing the essay for example subordinating conjunctions or adjectival nouns. Demonstrating your knowledge of these techniques shoul...
BC
Answered by Benedict C. • German tutor
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