The mapping f: N → N is given by f(n)

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Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Relations and Functions

Question:

The mapping f: N → N is given by f(n) = 1 + 2n, n ∈ N when N is the set of natural numbers is

Options:

one-one and onto

onto but not one-one

one-one but not onto

neither one-one nor onto

Correct Answer:

one-one but not onto

Explanation:

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