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I struggle to simplify the following equation: (see answer)

3l 2 mn + nl 2 m - 5mn 2 l + l 2 nm + 2n 2 ml - mn 2 The first step is to ask yourself if there is anything that could help you simplify the equation, any recurring term or common factor. Here, we note that ...
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Answered by Luc S. • Maths tutor
3933 Views

When do you use que and when do you use qui?

Que is used when talking about the object of the sentence, which means the thing which is having something done to it. For example, "la personne que j'ai vue." Here, la personne is the one being se...
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Answered by Harvey B. • French tutor
2813 Views

Integral of Cosec(x)/Sec(x) (i.e. Use of trignometric identities)

∫ Cosec (x)/Sec (x) dx∫ [1/Sin (x)]/ [1/Cos (x)] dx∫ [1/Sin (x)] * [Cos (x)] dx∫ Cot (x)= ln [Sin (x)] + c
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Answered by Sean M. • Maths tutor
8271 Views

Two numbers add to make 1000. What would they have to be to maximise their product?

We can write the two numbers as x and 1000-x, because x+(1000-x) = 1000 for any x we pick. Now we want to maximise the product x(1000-x); expanding the brackets gives us 1000x-x 2 which is easier to work wit...
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Answered by Ankur D. • Maths tutor
6989 Views

To what extent does a 'Muslim community' exist in the UK?

In contemporary Britain, references are often made to the British 'Muslim community' in the media or government. However, it is broadly incorrect to use this term. Culturally, British Muslims are highly dive...
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Answered by Richard M. • Politics tutor
3447 Views