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Which condition is necessary and sufficient for a function to have an inverse function?

Answer and explanation

Correct answer: The function is bijective

Step 1: For an inverse function, every output must correspond back to exactly one input. Step 2: One-one prevents multiple inputs, and onto ensures every codomain element is covered. Step 3: Hence being bijective is necessary and sufficient for an inverse function.

Related tags

FunctionsInverseBijectionTheoryRelations And FunctionsMathematicsClass 12 Mcq

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