Top answers

How can you integrate the function (5x - 1)/(x^(3)-x)?

The first thing to do, is see if it can be simplified: 5x -1 can't, however x^(3) - x simplifies to x(x^2 - 1) and then to x(x-1)(x+1) by the difference of two squares. So now we have (5x - 1)/(x(x-1)(x+1)) ...
AW
Answered by Adam W. • Maths tutor
3735 Views

What actually IS 'differentiation'?

Differentiation is a really common technique in a branch of maths called calculus. The idea is that you have a line on a graph (or a 'function') and we want to know the gradient - the steepness - of that cur...
BT
Answered by Ben T. • Maths tutor
4068 Views

I have too many abstract ideas for work I could make, but no concrete imagery to work from

This is where researching other artists' work could help - see how they represent what you are finding unrepresentable. Perhaps if they are attempting to depict the sublime, they refer to vast wildernesses, ...
FR
Answered by Francis R. • Art tutor
2009 Views

What is the secret to source questions

The secret to source questions is to keep it simple - extra knowledge is useful, but it is important not lose sight of the source at hand or the question. When you look at a source one must identify the NOP ...
DS
Answered by Dragomir S. • History tutor
3006 Views

What chemical test can be used to differentiate between alkenes and alkanes. Describe and explain the results.

Alkenes decolourise bromine water (orange/brown to colourless) while alkanes cause no change in colour. An electrophilic addition reaction occurs with the alkene. In a reaction between ethene and bromine wat...
SE
Answered by Sito E. • Chemistry tutor
14681 Views