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What is the chain rule and how does it work?

The chain rule is used when you're trying to differentiate a complicated function, and it allows you to split up the function into easier ones. The trick is spotting where to split the function, and what par...
EK
Answered by Ethan K. • Maths tutor
8088 Views

What are the basic components of the immune system

The immune system is made up of the Innate (or non-specific) immune responce and the acquired (or specific) immune responce. Imagine you live in your castle and it is your job to protect it. First you'll hav...
DF
6974 Views

How to transform graphs of functions?

So you've encountered something like: g(x) = | 4 f( |x + 1| - 3 ) + 5 | What a mess! And you are only given the graph of f(x). How do we go about sketching g(x)? As in any problem in mathematics, let's break...
AG
Answered by Adrian G. • Maths tutor
5436 Views

What is division of labour within a cell?

'Division of labour' is a term that describes the specialised functions of cell organelles which come together to ensure the cell is capable of surviving as well as performing it's role in the body. For exam...
BP
Answered by Ben P. • Biology tutor
105273 Views

How can I prepare to write an essay?

The preparation for writing an essay is incredibly important in allowing you to structure your work in a way that is engaging, readable and above all, well set out, so that your own thoughts and analysis can...
CH
Answered by Chloe H. • English tutor
5611 Views