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Questions and Answers
What is the key distinction between relations and functions?
Which type of relation is both reflexive and symmetric?
What is the relationship between one-to-one (injective) functions and bijective functions?
Which type of function has the property that every element in the codomain is the image of at least one element in the domain?
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What is the notation for a composite function?
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What is the purpose of function composition?
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What is a binary operation?
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How can functions be represented pictorially?
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Which condition is necessary for a function to be invertible?
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What is a real-world application of composite functions?
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