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There are a few ways to go about this question. I will do a substitution using u=(x+2)^1/2. From this equation we need to find x in terms of u, the new limits of the integral and dx in terms of ...

The subjunctive mood in French is deployed where a particular utterance indicates a certain attitude or opinion on behalf of the speaker. The subjunctive mood is deployed mostly in situations of doubt or ...

The imperfect tense is used to describe actions that do not have a clear beginning and end. For example, actions that were repeated (‘I used to go to school’), or, what we could call ‘background informati...

When simplifying algebraic expressions, we should first factorise each term fully to find any common factors. First we should factorise the numerator where 3x²-8x-3 factorises to (3x+1)(x-3). N...

The primary structure of proteins consist of the sequence of amino acids that are joined by peptide bonds. These amino acids are joined together via a condensation reaction. The secondary structure is for...