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In a function f: A → B, what is A called?

Answer and explanation

Correct answer: Domain

In the notation f: A → B, the set A contains the allowed input values and is called the domain of the function. The set B is the codomain, while the range consists only of the actual output values produced by elements of A. An inverse is a separate function or relation, not the name of A. Therefore option A is correct.

Related tags

DomainCodomainRangeFunctions

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