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If (f:A\to B), (A={1,2,3,4,5}), (B={a,b,c}), and (f={(1,a),(2,a),(3,b),(4,b),(5,c)}), what type of function is (f)?

Answer and explanation

Correct answer: Onto but not one-one

Step 1: All three elements (a,b,c) appear as images, so the function is onto. Step 2: Both (1) and (2) map to (a), so it is not one-one. Step 3: In such questions, check both codomain coverage and distinct images.

Related tags

Finite FunctionOntoNot One OneMappingFunctionsRelations And FunctionsMathematicsClass 12 Mcq

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