Top answers

Differentiate y=x^2cos(x)

This is done using the product rule: dy/dx=udv/dx +vdu/dxset y=uv therefore u=x^2 v=cos(x)differentiate these with respect to x du/dx= 2x as you multiply by the power and then subtract the power by 1dv/dx= -...
KK
Answered by Kavita K. • Maths tutor
3317 Views

What is the difference between the preterite and imperfect tenses?

Imagine a long line stretching from the present moment all the way back into the past. We can explain these two tenses by the way we mark them on the line. The preterite tense, generally representing past ac...
WT
Answered by William T. • Spanish tutor
2319 Views

How to effectively write a personal statement?

In order to do that firstly you need to ask yourself why are you applying for this specific course? It is a good practise to start it with writing down bullet points with all of the ideas. Then you can selec...
JŻ
2380 Views

I don't understand how to visualise differentiation, please could you show my an example to allow me to understand what it actually is better?

Well first, we could start with a straight line y = x. You should remember from GCSE that the equation of a straight line is given by y = mx + c, where m here is equal to 1.
DW
Answered by Daniel W. • Maths tutor
3035 Views

Which was the more important cause of the failure of the League: its organisation or its membership?

In terms of organisation, the League failed because it was too Eurocentric. When the Manchuria crisis unfolded it took the Lytton Commission 12 months to reach a decision because of the distance between Euro...
WH
Answered by William H. • History tutor
14471 Views