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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 differentiate x...

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 writing t...

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. Peter came: جاء بيتر Where: Pete...

There is no actual real definitive answer; for example, some people may choose to exclude an introduction and include an executive summary instead. The important thing is to check with whoever is marking it!...

The key here is to eliminate one of the variables; it doesn't matter whether we start by trying to get rid of x or y we will arrive at the same solution. For us to eliminate either x or y it is easiest to fi...