# Sets, Relations and Functions

Subject: Mathematics Exam: AIEEE

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## Important Concepts in Sets, Relations and Functions

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## Important Points

If two functions f and g satisfy f (g(x)) = x for every x in the domain of g, and g(f(x)) =x for every x in the domain of f, we say that

*f is the inverse of g*and

*g is the inverse of f*.