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If (f:{1,2,3}\to{4,5,6}) is one-one, what is true about (f(1)), (f(2)), (f(3))?

Answer and explanation

Correct answer: All three will be different

Step 1: In a one-one function, different inputs have different outputs. Step 2: (1,2,3) are three different inputs, so (f(1)), (f(2)), (f(3)) will be different. Step 3: In such questions, directly applying the definition is the safest method.

Related tags

One-One FunctionDefinitionFinite SetClass 12One One FunctionRelations And FunctionsMathematicsClass 12 Mcq

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