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Integration by parts is used to integrate a product of functions. The formula is as follows:

Int[f(x)g'(x)] = f(x)g(x) - Int [f'(x)g(x)]

Price discrimination is where firms charge a different price to different consumers for the same good for reasons other than cost. There are three degrees. First degree PD is where the seller knows the...

An acronym to help remember the prepositions which take the accusative case is FUDGEBOW. That is, 

fuer, um, durch, gegen, entlang, bis, ohne, wider.

There are 3 different outcomes for the fate of our universe:if the average density is smaller than what is known as the critical value, then the universe will carry on expanding fo...

The subjunctive is a mood used in French to express emotions or ideas which are uncertain or subjective. Examples include to express doubt, emotions or will/ wanting.There isn't really an English equivale...