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The Curve C has the equation 2x^2-11+13. The point Q lies on C such that the gradient of the normal to C at Q is -1/9. Find the x-co-ordinate of Q

The first ste here is the find the general equation for the gradient tangential to the curve. This is done by differentiation of the equation to give 4x-11=dy/dx. dy/dx is the gradient. Now we are given the ...
MH
Answered by Matthew H. • Maths tutor
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What is the role of aspect in Russian?

The two forms of aspect in Russian (the imperfective and the perfective) essentially function in the same way as the perfect and imperfect tenses do in other languages. For example, if in English you wish to...
MB
Answered by Matthew B. • Russian tutor
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With the use of examples, explain how physical factors can hinder a country's development

Examiners like this question because it asks you to link your knowledge of physical geography to development. It can seem a bit out there if you haven't done much physical geog but you should still be able t...
RM
Answered by Richard M. • Geography tutor
12509 Views

How do I analyse a source?

Source questions can be scary, particularly as the short time limit makes you feel that every word has to count. To feel more comfortable when analysing a source, the most important thing to keep in mind is ...
JD
Answered by Joe D. • History tutor
4619 Views

Discuss how and why particular research methods are used at the sociocultural level of analysis

According to the sociocultural level of analysis, much importance is placed on how the individual’s thinking and behavior is influenced by social factors, involving culture, social norms, values and even ste...
IP
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