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Revenge tragedies were popular in Elizabethan theatre for their violent action and on-stage spectacle of bloody justice. Hamlet uses a medieval Danish revenge story as a framework to comment on t...

The difference between avoir and être is a grammatical distinction that often confuses students, but is absolutely necessary to know when forming the perfect tense, as well as other more complex tenses...

Definition: Isomerism is when 2 molecules have the same molecular structure but a different structural arrangement (structural isomerism) or a different arrangement in space (st...

This is a geometry question. 

We know that a square has 4 equal sides of x, and that it's area is given by A=x². 

So we can work out the length of the side of the...

A mutation is a change in the sequence of nucleotides that make up DNA. This can be caused by a range of internal and external factors. Mutations within the coding region of genes can lead to changes i...