Let N be the set of all natural numbers, Z be the set of all integers and σ:N→Z be defined by \sigma(n)=\\begin{array}{cc}n/2 & \if n \is \even\\-{n-1\end{array}/2,\if n \is \odd Then

Correct Answer is : σ is one-one and onto

AP EAMCET Engineering 26 Apr 2017 Shift 1 Paper

Section: Mathematics

Question : 2 of 160

Marks: +1, -0

Let N be the set of all natural numbers, Z be the set of all integers and σ:N→Z be defined by
σ(n)={

if‌n‌is‌even

−

n−1

if‌n‌is‌odd

Then

Go to Question:

Prev Question

Next Question