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CUET UG Mathematics Applied Previous Year Questions (PYQs)

CUET UG Mathematics Applied Function PYQ

CUET UG Mathematics Applied PYQ
If the function $f:\mathbb{N}\to\mathbb{N}$ is defined as $$f(x)=\begin{cases}{n-1} & {,\, If\, \, n\, \, is\, \, even} \\ {n+1} & {,If\, n\, is\, odd}\end{cases}$$ then
(A) $f$ is injective
(B) $f$ is into
(C) $f$ is surjective
(D) $f$ is invertible
Choose the correct answer from the options given below :





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CUET UG Mathematics Applied

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CUET UG Mathematics Applied

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