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What is a good way to plan in an exam setting?

Planning in an exam is really important to ensure you have a structure of argument to refer back to. Due to the limited time available, your planning should be quick and to the point. A good way of doing thi...
HG
4103 Views

Calculate the relative atomic mass of an atom.

You will need to multiply the mass of each isotope (the same atom with a different mass number) by the percentage abundance of that isotope. Then, add all these values together and divide by 100. This will g...
ED
Answered by Emily D. • Chemistry tutor
2359 Views

2(x^2)y + 2x + 4y – cos (PI*y) = 17. Find dy/dx using implicit differentiation.

This tests the students knowledge of differentiation rules as well as algebraic manipulation. Namely the product rule and implicit differentiation. Differentiate term by term and then isolate dy/dx using alg...
RM
Answered by Robbie M. • Maths tutor
3424 Views

Use de Moivre’s theorem to show that, (sin(x))^5 = A sin(5x) + Bsin(3x) + Csin(x), where A , B and C are constants to be found.

State de Moivre's theorem. Use n =5 and solve. I'll show this on the whiteboard.
RM
6725 Views

When do you use a capital letter in German?

In German, capital letters are only used for nouns and names and after full stops. You can recognize nouns by spotting articles in front of them (e.g der, die, das / ein, eine). It is important to remember t...
JM
Answered by Josephine M. • German tutor
3851 Views