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Diagrammatically, this is where the demand and supply curves meet. The demand curve shows the quantity demanded by consumers at different prices, and the supply curve shows the quantity producers are w...

Answer: 00110111
Thinking: Two possible ways of answering this question expected for A Level and even at GCSE, let's start with the most common.
- Method one - consider th...

Here we need to use the chain rule because we have a function (natural log) of another function (x^2+3x+5). Let u=x^2+3x+5, and differentiate lnu with respect to u, this gives us 1/u. Then we different...

Personal statements are tricky: for someone who hasn't written one before, it's often difficult to work out what you should say, and how you should say it. Moreover, there's no 'one correct way' of writin...

In Arabic, sentences are divided into two types:

1. Nominal Sentence which starts with a noun. e.g. Peter is calm: بيتر هادئ

2. Verbal Sentence which starts with a verb. e.g...