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What is y' when y=3xsinx?

In order to differentiate something like y=3xsinx, you need to make use of the product rule. The product rule says that when you have an equation in the form y=f(x)g(x), you can find y' by using the formula ...
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Answered by Edward S. • Maths tutor
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Find the Co-ordinates and nature of all stationary points on the curve y=x^3 - 27x, and attempt to sketch the curve

Firstly we need to find the stationary points, we know that when the first derivative of the curve is equal to 0, this means it is a stationary point as there is no effective gradient. The first derivative i...
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Answered by Ahmed K. • Maths tutor
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To what extent was the Scramble for Africa due to power dynamics within Europe?

This is a factor essay question. Therefore, you must include the given factor (power dynamics within Europe) in your answer, but you must also include other factors - I suggest two further factors - to demon...
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Answered by Amber A. • History tutor
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Describe how an endotherm prevents its body temperature from rising when external temperatures increase?

An endotherm detects external temprature increases through peripheral skin receptors just beneath the skins surface. This causes impulses (action potentials) to travel to the thermoregulatory centre in the H...
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Answered by Jack O. • Biology tutor
4385 Views

What are important points to consider when being asked to analyse the usefulness of a primary source?

In order to answer a primary source there are 4 main points of focus in order to ascertain how useful the source is: Who - did the author (if it were a written artefact) have a particular reason for reacting...
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Answered by Alice K. • History tutor
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