Let N be the set of natural numbers and f : N → N be a function given by f (x) = x + 1 ∀ x ∈ N. Which one of the followi
We can see that solving fully: apply relevant formula, put numbers, compute. Result comes as f is one - one but not onto. Easy verification shows it satisfies condition.
Ref: NCERT Mathematics Class XI — Sets, Relations and Functions
