ID: Class: 12 Subject: Math Topic: Relations and Functions Type: Mcq Year: 2025

Question:

If \(f:N\rightarrow W\) is defined as \(f(n)=\begin{cases}\frac{n}{2},&if~n~is~even\\ 0,&if~n~is~odd\end{cases}\), then f is:
  • A. injective only
  • B. surjective only
  • C. a bijection
  • D. neither surjective nor injective