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How to do the product rule for differentiation

To do the product rule you must have two functions multiplied together. Here you must make one function be u and the other be v. The formula from this is uv’+vu’ where v’ and u’ are the differentials of the ...
DR
Answered by Daisy R. • Maths tutor
3495 Views

How do I know what auxiliary verb to use in the passé composé?

The passé composé is used to describe a single, completed action in the past. The passé composé is a compound tense, meaning you need two components to conjugate the verb: 1) the auxiliary verb (avoir or êtr...
LK
Answered by Lara K. • French tutor
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Describe and explain the trend in boiling points in the first four hydrogen halides

HF has the highest boiling point this is followed by HI, then HBr with HCl having the lowest boiling point of the four molecules. This is because HF is able to form Hydrogen bonds whereas the other three mol...
TM
Answered by Theo M. • Chemistry tutor
60894 Views

Differentiate xcos(x) with respect to x.

How do we know which method of differentiation to use in this example? Well in ‘xos(x)’, we have 2 different functions: ‘x’ and ‘cos(x)’. Therefore, we must differentiate using the product rule. What is the ...
OS
Answered by Oliver S. • Maths tutor
5947 Views

'Othello's virtue and valour ultimately make him admirable.' To what extent to do you agree with this view? (AQA A level English Literature question)

As a Venetian soldier, Othello holds a great deal of valour within his society, despite being an outcast due to his race. However, his virtue and valour are greatly undermined when he is prayed on by Iago, w...
KI
Answered by Katie I. • English tutor
8887 Views