Maths-
General
Easy
Question
A mapping
, where N is the set of natural numbers is defined as
For
Then,
is
- Surjective but not injective
- Injective but not surjective
- Bijective
- Neither injective nor surjective
The correct answer is: Neither injective nor surjective
Since, 

is not injective.
Also,
is not surjective as every element of N is not the image of any element of N
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In this question, we have to find the which type of relation it is. Try to prove the all type of relation and find the which one is satisfies it.