Home Maths Functions, Limits, Continuity and Differentiability Functions A function f from the set of natural numbers…
Maths Functions, Limits, Continuity and Differentiability Functions Single Correct MCQ
Published on: August 11, 2026

A function f from the set of natural numbers to integers defined by , is

A
One-one but not onto
B
Onto but not one-one
C
One-one and onto both
D
Neither one-one nor onto

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Text Solution

Verified by Experts
The correct answer is:
C

and so on.

In this type of function every element of set A has unique image in set B and there is no element left in set B. Hence f is one-one and onto function.

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