f : N → N where f(x) = x − (−1 )x then 'f is | MATH - FUNCTIONS | SolveeIt | Solveeit

Today, August 19

Question

f : N → N where f(x) = x − (−1 )^x then 'f is

A

One one and into

B

Many one and into

C

One one and onto

D

Many one and onto

Answer

One one and onto

Explanation

Solution

f(x)=

Which is clearly one one and onto.