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To do this we will use the chain rule, whereby dy/dx = dy/du * du/dx. So if y = (ax^2+bx+c)^n then we will say that u = ax^2+bx+c. Therefore y =u^n. So to find dy/dx we differentiate u with respect to x, ...

Geostationary orbits: -have a time period of 24 hours -have an angular speed equal to that of the Earth - maintain above a fixed position on the Earth's surface at all times. Therefore, they are very good...

Many (Not all) neurons are myelinated by schwann cells. The myelination covers the neuron with a fatty layer with small gaps between each schwann cells. These small gaps are called nodes of ranvier. When ...

Firstly you need to have a good question which you want to answer! This may sound obvious but think about it. If your question is too broad you will have to read too much stuff, you to specialise and have...

The first thing that you need to do is check that you are answering the question! This means writing an answer that directly refers to the words of the question. Its this that makes the difference between...