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What is integration by parts?

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)]
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Answered by Sam R. • Maths tutor
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What is price discrimination?

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 deman...
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Answered by Sam R. • Economics tutor
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How do I form the perfect tense?

The perfect tense consists of avoir/etre (auxiliary) + the past participle. You use the perfect tense for things which happened once in the past. For example: Je fin -> J'ai fini Je vais -> Je suis allé
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Answered by Sam R. • French tutor
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Which prepositions take the accusative?

An acronym to help remember the prepositions which take the accusative case is FUDGEBOW. That is, fuer, um, durch, gegen, entlang, bis, ohne, wider.
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Answered by Sam R. • German tutor
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Describe how the average density of matter in the universe affects its ultimate fate?

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 forever.if the average densit...
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Answered by Rebecca N. • Physics tutor
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