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If (f:A\to A), (A={1,2,3}), and (f(1)=2), (f(2)=3), (f(3)=1), which statement about (f) is correct?

Answer and explanation

Correct answer: It is bijective

Step 1: The images of the three elements of (A) are all distinct. Step 2: The outputs include (1,2,3), so the function is onto. Step 3: For finite equal sets, distinct images imply bijection.

Related tags

BijectionFinite SetMappingFunctionsRelations And FunctionsMathematicsClass 12 Mcq

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