Top answers

How do you use derivatives to categorise stationary points?

When investigating graphs, you will often be asked to pick out features of the graph; stationary points being the most popular. You will need to know that a stationary point on f(x) can be found by solving t...
AW
4350 Views

What is the difference between a definite integral and an indefinite integral?

A definite integral is actually a numerical value, which the represents the area under a graph between two points. For example, if you integrated f(x) between two values (lets call them a and b), the answer ...
AW
Answered by Alex W. • Maths tutor
9380 Views

How can I bring my controlled assessment work up to an A-grade?

In both writing and speaking assessments, you need to ensure your content has good flow and ticks certain boxes that the examiner is looking for - for example have you used the correct form of the past tense...
IL
Answered by Isabella L. • Spanish tutor
2095 Views

What would your advice be on revision for History A-Level?

There is no definitively correct answer on revision. All students learn and revise in a variety of different ways. However, my advice when it comes to History at A-Level and even during my studies at undergr...
DL
Answered by Daniel L. • History tutor
35402 Views

How are amino acids involved in condensation and hydrolysis reactions?

A condensation reaction is where two small molecules react together to form a larger molecule with the elimination of a small molecule like water. Two amino acids can react in a condensation reaction to form...
ZC
Answered by Zoe C. • Chemistry tutor
37716 Views