Let P be the set of all 45 students of class X in a school. Let f:P→ – InterviewSolution

1.	Let P be the set of all 45 students of class X in a school. Let f:P→N be a function defined by f(x)= roll number of student x. State whether the function f is bijective or not.
Answer» Let $P$ be the set of all $45$ students of class X in a school. Let $f : P \to N$ be a function defined by $f (x) =$ roll number of student $x$ . State whether the function $f$ is bijective or not.

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