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CUET Mathematics 2024 PYQs

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CUET Mathematics 2024

Algebra

>

Relations & Functions

Medium

If the function $f: \mathbb{N} \rightarrow \mathbb{N}$ is defined as $f(n)=\left\{\begin{array}{ll}n-1, & \text { if } n \text { is even } \\ n+1, & \text { if } n \text { is odd }\end{array}\right.$ , then $\newline$ (A) f is injective $\newline$ (B) f is into $\newline$ (C) f is surjective $\newline$ (D) f is invertible

(B) only

(A), (B) and (D) only

(A) and (C) only

(A), (C) and (D) only

Correct Option: 4

Will be added.

Related questions:

CUET Mathematics 2024

Let R be the relation over the set A of all straight lines in a plane such that

l_{1} \mathrm{R} l_{2} \Leftrightarrow l_{1}

l_{2}