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If (f:\mathbb{N}\to\mathbb{N}), (f(n)=2n-1), then (f) is not onto because

Answer and explanation

Correct answer: Even natural numbers are not images

Step 1: (2n-1) always gives an odd natural number. Step 2: The codomain (\mathbb{N}) contains even natural numbers such as (2,4,6), which are not images. Therefore the function is not onto. Step 3: Identify the type of values produced by the formula.

Related tags

Relations-FunctionsNatural-NumbersOnto-FunctionOnto FunctionRelations And FunctionsMathematicsClass 12 Mcq

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