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Change of subject question. Make 'a' the subject of the formula v = u + at.

Rule: An equation must be balanced. Therefore, in order to keep the equation balances, what you do to one side you must do to the other side. Change of subject questions require you to isolate the required l...
SW
Answered by Sherin W. • Maths tutor
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Discuss the advantages of judicial precedent. (10 marks)

A sound answer should discuss, at minimum, three of the points mentioned below, supported by a case example where appropriate. Certainty - a judge ultimately has to reach a decision in a case, and lawyers ca...
ER
Answered by Eva R. • Law tutor
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What is a purpose clause and how do you construct one in Greek?

A purpose clause is a sentence that expresses purpose - doing something in order that something else might happen. For example, 'he shouted so that the girl would help him', 'I went towards Athens to see the...
JG
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How are electron microscopes (TEM) fundamentally different from light microscopes and what are the advantages and disadvantages of each?

Microscopes, in general, work by concentrating radiation of a given wavelength be it light or electrons (let's think of it as a wave just like light) onto a specimen (condensor/electromagnets) after which th...
YZ
Answered by YuGeng Z. • Biology tutor
5839 Views

Given that y = (( 4x + 1 )^3)sin(2x), find dy/dx.

This is an example of the chain rule. The chain rule is the following: if y = uv, then dy/dx = udv/dx + vdu/dx So in this case, u = ( 4x + 1)^3, v = sin(2x) du/dx = (3)(4)( 4x + 1 )^2, dv/dx = 2cos(2x) dy/dx...
DS
Answered by Danielle S. • Maths tutor
5556 Views